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Following on from our last blog on adding fractions with like denominators, adding fractions with unlike denominators is a little more complicated.

Improper fractions, or fractions with unlike denominators, may look a bit difficult. However, once you make the denominators the same, the addition is easy.

Let’s use an example:
fractions with unlike denominators 


Fractions are parts of a whole.  To understand fractions we need to understand each part of the fraction.

The bottom number is called the denominator. The denominator tells us two things:

1.    How many parts our whole is divided into;
2.    What to call these parts.

For example in the fraction 2/3:

fractions denominator


You may have noticed that we have updated our vocabulary worksheets sections for grades 1 – 5 with more variety of exercises. To complement those exercises, we are also creating vocabulary workbooks for further practice. Our grade 3 vocabulary and grade 4 vocabulary workbooks were published late last year. Our latest addition is the grade 1 vocabulary workbook.

New grade 1 vocabulary workbook

Like our other vocabulary workbooks, every lesson starts with a word list and definitions. Following are four exercises to practice the words. Those exercises include identifying words by pictures, selecting definitions of words by multiple choice, synonym and antonym exercises, crosswords, matching sentences to pictures, context clues, completing sentences with words from a word bank, among others.

There are 30 lessons in total. Each lesson covers 10 vocabulary words.

A review of a vocabulary lesson

Let’s take a look at some of the exercises we cover in the grade 1 vocabulary workbook. Here’s a focus on Lesson 10.

Word list

It starts with a list of words and definitions – presented in a dictionary style. This will save you time from flipping through a dictionary.

grade 1 vocabulary word list


We have added over 300 new worksheets to our grade 1 and grade 2 grammar sections.

How to find the grammar worksheets

You’ll now find that our grammar sections are divided by grade, …
grammar page 


When your kids struggle with their math, it’s time to take a step back and take a deep breath. They need to slow down and take their time. Here’s a step by step guide that will help your kids get through those tough math problems.

We’ll use a grade 3 addition word problem as an example to clarify:

Pinky the Pig bought 36 apples while Danny the Duck bought 73 apples and 14 bananas. How many apples do they have altogether?

Read the problem

Carefully read through the problem to make sure you understand what is being asked.

Pinky the pig and Danny the duck bought apples and bananas. The question is how many apples they have together.


In grade 5, students start learning about exponent math and about the properties of exponents.  We created a new page of exponent worksheets in our grade 5 math section that covers introducing, reading and writing exponents.

Introducing exponents

This set of worksheets introduces exponents: the repeated multiplication of a base number, and shows students how to rewrite a number being multiplied by itself as an exponent.

grade 5 introduction to exponents


We have added several new worksheets to our grade 5 vocabulary page. The worksheets cover prefix, affixes, homographs, idioms, proverbs, similes and metaphors.
Here’s an overview of our new worksheets:

Prefix and suffix words

Students practice prefix and suffix words appropriate for grade 5 in these two sets of worksheets.


We realize that it can be hard to know what grade the math worksheet you are looking for is in, so we have added the option to search our math worksheets by topic. Here’s where you can find that option on our main math worksheets page:

math by topic search 


We have added two new sections of worksheets to our grade 4 vocabulary worksheets page. The first section deals with Latin and Greek root words in a new prefix and suffix are of study. The second section covers idioms, proverbs, similes and metaphors.

Here’s an overview of our new worksheets:

Prefix and suffix words

Students are asked to write prefix and suffix words based on Latin and Greek root words.

Grade 4 vocabulary worksheet - prefix suffix words


By Sheila Welch


Our book reviewer, Sheila Welch, has recommendations on books to read about adoption in recognition of National Adoption Month.



I read Worth by A. LaFaye over a year ago, but I have not forgotten those two strong boy characters. All the main characters are clearly defined and play important roles in this captivating winner of a Scott O’Dell Award for historical fiction. When Nathan, the narrator, is severely injured on his family’s Midwestern farm, his father brings home a boy who arrived on a train. Is this city kid going to replace Nathan? This question will grab and hold the interest of readers in grades fourth through eighth. Worth brings to life a period in the history of the USA that's unfamiliar to many children and even adults. From 1854 until 1930, Orphan Trains carried destitute city kids west to be placed with country families. Neither Nathan nor John Worth is happy about their drastically changed lives and their inability to turn back time. Yet gradually they begin to inch forward together, learning about and from each other. When a local range war flares up, the two boys cooperate to help curb the hostility, and readers will welcome the realistic but satisfying conclusion. The Aladdin paperback edition has an appealing cover and  contains thought-provoking questions for classroom or book club discussion.