Question

[Pham Trong Bach]

Cộng các phân số sau:

$\begin{array}{l}a)\frac{1}{6}+\frac{5}{6};\begin{array}{cccc}& & & \end{array}b)\frac{5}{-4}+\frac{-18}{4};\begin{array}{ccc}& & \end{array}c)\frac{3}{5}+\frac{-1}{3};\\ \\ d)\frac{-2}{13}+\frac{-11}{26};\begin{array}{ccc}& & \end{array}e)\frac{2}{21}+\frac{1}{28};\begin{array}{ccc}& & \end{array}f)2+\frac{-3}{4};\end{array}$

Answer 1

[Cao Minh Tâm]

a ) 1 ; b ) − 23 4 ; c ) 4 15 ; d ) − 15 26 ; e ) 11 84 ; f ) 5 4