Question

Сколько будет?
3/4-2/9+5/36​

Answer 1

Ответ:

$\frac{3}{4} - \frac{2}{9} + \frac{5}{36} = \frac{2}{3} \\ (1) = \frac{3}{4} - \frac{2}{9} = \frac{19}{36} \\ 4 = 2 \times 2 \\ 9 = 3 \times 3$

НОК= 4 × 3 × 3 = 36

$\frac{3 \times 9}{36} - \frac{2 \times 4}{36} = \frac{27 - 8}{36} = \frac{19}{36} \\ (2) = \frac{19}{36} + \frac{5}{36} = \frac{2}{3} \\ \frac{19 \times 1}{36} + \frac{5 \times 1}{36} = \frac{19 + 5}{36} = \frac{24}{36} = \frac{2}{3} \\ \frac{24}{36} = \frac{2 \times 2 \times 2 \times 3}{2 \times 2 \times 3 \times 3} = \frac{2}{3}$

вот держи