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Maths · Grade 4 · Set A
Same bottom, add the tops
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A
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Goal: 15 min
Score/ 12
Remember: When the pieces are the same size, add or take away the tops and keep the bottom. 2 sixths + 3 sixths = 5 sixths.

Put pieces together

1
Sam ate the shaded part of the first bar and the shaded part of the second bar. How much did he eat in all? 3/6 + 2/6 =
2
Look at the tape. What is 1/8 + 4/8?
5/165/84/8
3
Which bar shows 2/5 + 1/5?
A
B
C
4
3/5 + 1/5 = 4/10
TrueFalse
5
Sam has the shaded part of a chocolate bar. He eats 4/8 of the bar. How much is left?
6
7/8 − 5/8 = 2/8
TrueFalse

Missing pieces and thinking

7
Fill the box with sixths: 5/6 = 3/6 +
8
Look at the whole bar. What goes in the box? 5/5 = 4/5 + ?
5/104/51/5
9
3/5 + 2/5 = (write it as a fraction or as a whole number)
10
Join each problem to its answer.
  1. 11/7 + 2/7
  2. 24/7 + 2/7
  3. 36/7 − 2/7
  4. 46/7 − 5/7
  • A1/7
  • B6/7
  • C4/7
  • D3/7
11
Put the answers in order from least to greatest.
  • 3/8
  • 2/8 + 4/8
  • 1/8 + 1/8
  • 5/8
12
Mia says 1/4 + 1/4 = 2/8. What is her mistake?
She added the bottoms too.She should have multiplied.There is no mistake.
13
Draw a bar cut into 8 equal parts. Shade 3 parts, then shade 2 more. Write the sum as a fraction.
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Answer key · Set A
Same bottom, add the tops
15/6 The pieces are all sixths. 3 sixths and 2 sixths make 5 sixths. The bottom stays 6.
25/8 Add the tops and keep the bottom: 1 + 4 = 5, so the answer is 5/8. The pieces are still eighths.
3B 2 fifths and 1 fifth make 3 fifths. Bar B has 3 of 5 parts shaded.
4False Do not add the bottoms. The pieces are still fifths, so 3/5 + 1/5 = 4/5.
53/8 7 eighths take away 4 eighths leaves 3 eighths. The bottom stays 8.
6True Take the tops away and keep the bottom: 7 − 5 = 2, so the answer is 2/8.
72/6 5 sixths is 3 sixths and 2 sixths more.
81/5 A whole bar is 5 fifths. 4 fifths and 1 fifth make 5 fifths.
95/5 3 fifths and 2 fifths make 5 fifths, and 5 fifths is one whole.
101-D, 2-B, 3-C, 4-A
112, 4, 1, 3 1/8 + 1/8 = 2/8 and 2/8 + 4/8 = 6/8. In order: 2/8, 3/8, 5/8, 6/8.
12She added the bottoms too. The pieces are fourths and stay fourths. 1 fourth + 1 fourth = 2 fourths.
Mark each answer, count the right ones and write the score on the sheet.