Question

Найдите значение выражения: $6\frac{3}{5} + 1\frac{1}{9} * 0,72$

Answer 1

$6 \frac{3}{5} + 1 \frac{1}{9} \times 0.72 = 7.4 \\ 1 \frac{1}{9} \times \frac{72}{100} = \frac{10}{9} \times \frac{72}{100} = \frac{8}{10} = \frac{4}{5}$

$6 \frac{3}{5} + \frac{4}{5} = 6 \frac{7}{5} = 7 \frac{2}{5} = 7.4$

Answer 2

6_3/5 + 1_1/9 * 0,72 = 7,4

          2          1

1) 1_1/9 * 0,72 = 10/9 * 72/100 = (10* 72) / (9 * 100) = 8/10=0,8

2) 6_3/5 + 8/10 = 6_ 6/10 + 8/10 = 6_14/10 = 7_4/10 = 7,4 = 7_2/5