Question

va rog am nevoie de rezolvare pas cu pas!!!! Dau coroană!!!!!!!!
$\frac{2}{3} \times 5 =$

$2 \times \frac{7}{8}$

$\frac{3}{2} \times \frac{3}{5} =$

$\frac{8}{5} \times \frac{4}{9}$

$\frac{3}{7} \times \frac{4}{9} =$

$\frac{5}{6} \times \frac{9}{8}$

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Answer 1

Răspuns:

2/3·5=(2·5)/3=10/3

2·7/8=(2·7)/8=14/8=7/4

3/7·4/9=(3·4)/(7·9)=12/63=4/21

5/6·9/8=(5·9)/(6·8)=45/48=15/16