Question

Answer 1

Lời giải:

a.

$=\sqrt{5^2}-3\sqrt{(\frac{2}{3})^2}=5-3.\frac{2}{3}=3$

b.

$=\frac{11+13}{24}-\frac{5+36}{41}+0,5=\frac{24}{24}-\frac{41}{41}+0,5=1-1+0,5=0,5$

c.

$=25.\frac{-1}{125}+\frac{1}{5}-2.\frac{1}{4}-\frac{1}{2}$

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