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Adding Different Denominator Fractions

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Adding Different Denominator Fractions

Show your working and simplify each answer where possible.

Equivalent fractions

1.Complete the equivalent fractions: 1/2 = /4 = /8.

2.Complete: 2/3 = /6 = 4/ .

3.Select every fraction equivalent to 1/2.

3/6
3/8
5/10
4/6

Model and add

4.Use the fraction bar to represent 1/4 + 1/2. Rename the fractions in fourths, then find the total.

5.Show 1/3 + 1/6 with the fraction bar. Rename the fractions in sixths and add.

6.For 1/2 + 1/4, state a common denominator, rename both fractions, and give the sum.

7.Calculate 1/3 + 1/6. Show the equivalent fractions and simplify if possible.

8.Calculate 2/3 + 1/6. Show the equivalent fractions and simplify if possible.

9.Calculate 1/4 + 1/2. Show the equivalent fractions and simplify if possible.

Number lines and everyday maths

10.Mark the starting amount, show a jump of 2/6, and label the total for 1/6 + 2/6.

11.Use the number line to show 1/4 + 1/4. Label the sum and simplify it.

12.For the class newspaper’s food page, Georgia ate 1/4 of a shared flatbread and Keira ate 1/2 of the same flatbread. What fraction did they eat altogether?

13.A recipe for the class newspaper needs 1/3 cup of oats and 1/6 cup of seeds. How many cups do those ingredients measure altogether?

14.Why do you rename fractions with a common denominator before adding them?

15.What should you do first when adding fractions with different denominators?