Question

( 6 ЦЕЛЫХ 7/15 - 1,4 ) : ( 2 ЦЕЛЫХ 4/5 + 1,2)

Answer 1

$(6 \frac{7}{15} - 1 \frac{4}{10} ) \div (2 \frac{4}{5} + 1 \frac{2}{10} ) = \\ = (6 \frac{14}{30} - 1 \frac{12}{30} ) \div (2 \frac{8}{10} + 1 \frac{2}{10} ) = \\ = 5 \frac{2}{30} \div 4 = \\ = \frac{152}{30} \times \frac{1}{4} = \\ = \frac{38}{30} = 1\frac{8}{30} = \\ = 1 \frac{4}{15}$
Ответ: 1 4/15

Answer 2

Решение на фотографии