Question

помогите дам 20 баллов​

Answer 1

Ответ:

а)4×5=20

б

$( \frac{23}{11} + \frac{3}{11}) \times \frac{11}{12}$

$\frac{26}{11} \times \frac{11}{12}$

$13 \times \frac{1}{6} = \frac{13}{6}$

в)

$\frac{1}{5} \times 3 = \frac{3}{5}$

г)

$\frac{11}{12} \times 2 = \frac{11}{6} = 1 \frac{5}{6}$