Question

вычистите 1)13/14:26/27= 2)19/36:19/20=

Answer 1

Пошаговое объяснение:

1)

$\frac{13}{14} \div \frac{26}{27} = \frac{13 \times 27}{14 \times 26} = \frac{351}{364} = \frac{27 \times 13}{28 \times 13}$

$= \frac{27}{28}$

2)

$\frac{19}{36} \div \frac{19}{20} = \frac{19 \times 20}{36 \times 19} = \frac{380}{684} = \frac{5 \times 76}{9 \times 76}$

$= \frac{5}{9}$