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Maths · Grade 3 · Set A
One part out of eight
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A
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Goal: 15 min
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Remember: A unit fraction is one part out of equal parts. The bottom number counts all the equal parts, so 1 part of 8 is 1/8.

Name one part

1
The circle is cut into equal parts. One part is shaded. What fraction of the circle is shaded?
2
One part of the bar is shaded. What fraction of the bar is shaded?
1/61/71/8
3
Which circle has one third shaded?
A
B
C
4
This bar is cut into 2 parts, so each part is one half.
TrueFalse
5
One part of the bar is shaded. What is the bottom number of its fraction?
156
6
Which bar shows one sixth?
A
B
C

Use what you know

7
The line from 0 to 1 has 4 equal parts. The dot is one part from 0. What fraction is the dot at?
8
One fourth of the square is shaded.
TrueFalse
9
The shaded part of this circle is 1/6 of the circle.
TrueFalse
10
Each circle has one part shaded. Which fraction is the biggest piece?
1/21/41/8
11
Put the shaded pieces in order from the biggest piece to the smallest piece.
  • 1/2
  • 1/6
  • 1/4
  • 1/3
12
One shaded part is 1/4 of the whole bar. How many parts like this make the whole bar?
13
Draw a circle. Cut it into 6 equal parts. Shade one part and write its fraction.
14
Why do the parts have to be equal parts when we name a fraction? Write what you think.
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Answer key · Set A
One part out of eight
11/4 The circle has 4 equal parts and 1 is shaded, so the fraction is 1/4.
21/8 Count all the equal parts: there are 8. The bottom number counts all the parts, so it is 1/8.
3B One third is 1 part out of 3 equal parts. Circle A has 4 parts, and circle C has 2 parts shaded.
4False One half needs 2 EQUAL parts. These two parts are not the same size.
56 The bottom number counts all the equal parts, even the ones that are not shaded. There are 6.
6A One sixth is 1 part out of 6 equal parts. Bar C has only 5 parts.
71/4 Each of the 4 equal parts is 1/4 long. The dot is at the end of the first part, so it is at 1/4.
8True The square has 4 equal parts and 1 is shaded, so one fourth is shaded.
9False Count the equal parts: there are 8, not 6. One shaded part is 1/8.
101/2 The fewer the equal parts, the bigger each part is. Cutting into 2 makes the biggest pieces.
111, 4, 3, 2 The more equal parts a whole is cut into, the smaller each part is. So 1/2 is biggest and 1/6 is smallest.
124 Each part is one fourth. It takes 4 fourths to make the whole bar.
14Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.