Equal Fractions: Missing Numerator Worksheets for 3rd Grade
Find the missing top number so two fractions name the same amount. 15 free printable worksheets, each with an answer key.
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Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
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Equal Fractions: Missing Numerator: what children learn
Equivalent fractions name the same amount even though the numbers differ, like 1/2 and 2/4. Third graders find them with simple cases among halves, thirds, fourths, sixths, and eighths.
Equal Fractions: Missing Numerator: worked example
1/2 = __/4 2
The whole is cut into twice as many parts, so the top number doubles too. 1 part of 2 is the same amount as 2 parts of 4.
Equal Fractions: Missing Numerator: a common mistake to watch for
Kids sometimes change only the bottom number, writing 1/2 = 1/4 instead of 1/2 = 2/4.
Equal Fractions: Missing Numerator: how to help at home or in class
Tell a pizza story: a pizza is cut into 2 slices and you eat 1. Now cut every slice in half. How many slices are there, and how many did you eat? Acting this out shows that both numbers change together. Repeat with thirds becoming sixths. Once your child fills in the blanks in both directions, going from smaller to bigger denominators and back again, they can move to equal fractions with bars.
What is on these Equal Fractions: Missing Numerator worksheets
This set has 15 different worksheets for 3rd grade, with 8 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Write the missing number to make the fractions equal.”
Example questions like the ones on these worksheets, with their answers:
- 1/2 = __/42
- 3/4 = __/86
- __/2 = 4/81
- __/4 = 2/81
- 2/4 = __/63
- __/6 = 1/32
- __/6 = 2/34
- 3/6 = __/21
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers