Question

2/7:5/11=
2/5:3/4=
4/7:13/5=
6/7:19/5=

Answer 1

Пошаговое объяснение:

2/7:5/11=2/7*11/5=22/35

2/5:3/4=2/5*4/3=8/15

4/7:13/5=4/7*5/13=20/91

6/7:19/5=6/7*5/19=30/133

Answer 2

1)

$\frac{2}{7} \div \frac{5}{11} = \frac{2}{7} \times \frac{11}{5} = \frac{2 \times 11}{5 \times 7} = \frac{22}{35}$

2)

$\frac{2}{5} \div \frac{3}{4} = \frac{2}{5} \times \frac{4}{3} = \frac{2 \times 4}{5 \times 3} = \frac{8}{15}$

3)

$\frac{4}{7} \div \frac{13}{5} = \frac{4}{7} \times \frac{5}{13} = \frac{4 \times 5}{7 \times 13} = \frac{20}{91}$

4)

$\frac{6}{7} \div \frac{19}{5} = \frac{6}{7} \times \frac{5}{19} = \frac{6 \times 5}{19 \times 7} = \frac{30}{133}$