Question

ПОМОГИТЕ 20 БАЛЛОВ!!! НОМЕР 62!!!!

Answer 1

Пошаговое объяснение:

1.

$\frac{2}{3} a \times \frac{7}{12} b = \frac{14}{36} ab = \frac{7}{18} ab$

2.

$\frac{8}{9} x \times 1\frac{4}{5} y = \frac{8}{9} \times \frac{9}{5} xy = \frac{72}{45} xy$

3.

$5m \times 2 \frac{6}{11} n \times 2 \frac{5}{14} k = \frac{5}{1} m \times \frac{28}{11} n \times \frac{33}{14} k = \frac{4620}{154} mnk = 30mnk$

Answer 2

Ответ:

Пошаговое объяснение:

1) 2/3a * 7/12b = 14/36ab = 7/18ab

2) 8/9x * 1 4/5y = 8/9x * 9/5y = 8/5xy = 1 3/5xy

3) 5m * 2 6/11n * 2 5/14k =

5m * (28/11n * 33/14k) =

5m * (2/1n * 3/1k) =

5m * 6nk = 30mnk