Question

Tính.

a) $\frac{1}{{10}} + \frac{3}{{10}}$                     

b) $\frac{5}{{12}} + \frac{1}{{12}}$                     

c) $\frac{3}{2} + \frac{1}{2}$

Answer 1

a) $\frac{1}{{10}} + \frac{3}{{10}} = \frac{{1 + 3}}{{10}} = \frac{4}{{10}} = \frac{2}{5}$

b) $\frac{5}{{12}} + \frac{1}{{12}} = \frac{{5 + 1}}{{12}} = \frac{6}{{12}} = \frac{1}{2}$

c) $\frac{3}{2} + \frac{1}{2} = \frac{{3 + 1}}{2} = \frac{4}{2} = 2$