Question

Efectuati:
a). $\frac{2}{3}+\frac{3}{5}×\frac{5}{6}$
b). $1\frac{1}{2}×2\frac{2}{3}+ 5$
a cu caciulita este ori

Answer 1

a)

$\dfrac{2}{3}+\dfrac{3}{\not5}\cdot\dfrac{\not5}{6} =\dfrac{2}{3}+ \dfrac{3}{6} =\dfrac{4}{6}+\dfrac{3}{6}=\dfrac{7}{6} =1\dfrac{1}{6}$

b)

Introduc intregii in fractie:

$\dfrac{\not3}{2}\cdot\dfrac{8}{\not3}+5 = \dfrac{8}{2} +5 =4+5=9.$