Free Printable 三年级分数加法

1.

$\frac{2}{4}+\frac{1}{4}=$

a)

$\frac{3}{8}$

b)

$\frac{1}{2}$

c)

$\frac{3}{4}$

d)

$\frac{1}{4}$

2.

$\frac{2}{5}\ +\ \frac{2}{5}\ =$

a)

$\frac{2}{5}$

b)

$\frac{4}{10}$

c)

$\frac{4}{5}$

3.

$\frac{1}{3}$ 与 $\frac{4}{9}$ 的和是多少？

a)

$\frac{5}{9}$

b)

$\frac{2}{3}$

c)

$\frac{7}{9}$

d)

$\frac{8}{9}$

4.

七分之四加七分之一等于多少？

a)

$\frac{5}{7}$

b)

$\frac{1}{2}$

c)

$\frac{3}{7}$

d)

$\frac{5}{14}$

5.

$\frac{2}{5}$ + $\frac{1}{2}$ =

a)

$\frac{8}{10}$

b)

$\frac{9}{10}$

c)

$\frac{4}{5}$

d)

$\frac{7}{8}$

6.

$\frac{3}{8}$ + $\frac{1}{4}$ =

a)

$\frac{2}{8}$

b)

$\frac{3}{8}$

c)

$\frac{4}{8}$

d)

$\frac{5}{8}$

7.

$\frac{2}{5}$ + $\frac{1}{3}$ =

a)

$\frac{9}{15}$

b)

$\frac{10}{15}$

c)

$\frac{11}{15}$

d)

$\frac{12}{15}$

8.

$\frac{4}{11}+\frac{7}{11}=?$

a)

$\frac{11}{22}$

b)

$\frac{11}{11}$

c)

$1$

d)

$\frac{3}{11}$

9.

$\frac{1}{2}\ +\ \frac{1}{4}\ =\ \$
接下来的正确步骤是哪个？

a)

$\frac{1\times2}{2\times2}\ +\ \frac{1}{4}\$ （把分母同化）

b)

$\frac{1}{2}\ +\ \frac{1}{4}\ =\ \frac{2}{6}$ （直接上下分别相加）

10.

$\frac{1}{2}\ +\ \frac{2}{6}\ =\ \$

a)

$\frac{1}{2}\ +\ \frac{2}{6}\ =\ \frac{3}{8}$

b)

$\frac{3}{6}\ +\ \frac{2}{6}\ =\ \frac{5}{6}$

11.

$\frac{1}{2}\ +\ \frac{2}{10}\ =\ \$

a)

$\frac{5}{10}\ +\ \frac{2}{\ 10}\ =\ \frac{7}{10}$

b)

$\frac{1}{2}\ +\ \frac{2}{10}\ =\ \frac{3}{12}$

12.

$\frac{1}{3}+\frac{1}{4}=$

a)

$\frac{2}{7}$

b)

$\frac{1}{7}$

c)

$\frac{7}{12}$

d)

$\frac{2}{12}$

13.

$\frac{3}{4}+\frac{1}{6}=$

a)

$\frac{11}{12}$

b)

$\frac{4}{12}$

c)

$\frac{4}{10}$

d)

$\frac{3}{10}$

14.

$\frac{2}{5}+\frac{1}{2}=$

a)

$\frac{3}{10}$

b)

$\frac{3}{5}$

c)

$\frac{9}{10}$

d)

1

15.

$\frac{3}{5}+\frac{3}{10}=$

a)

$\frac{9}{10}$

b)

$\frac{7}{10}$

c)

$\frac{5}{10}$

d)

$\frac{4}{5}$

16.

$\frac{1}{9}+\frac{2}{3}=$

a)

$\frac{8}{9}$

b)

$\frac{4}{9}$

c)

$\frac{3}{9}$

d)

$\frac{7}{9}$

17.

$\frac{1}{4}+\frac{4}{8}=$

a)

$\frac{5}{8}$

b)

$\frac{7}{8}$

c)

$\frac{3}{4}$

d)

1

18.

$\frac{1}{2}\ +\ \frac{1}{4}\ =$

a)

1

b)

2

c)

3

d)

$\frac{3}{4}$

三年级分数加法

Total questions: 18

Worksheet time: 9mins

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