Question

Пж срочно решите 5/6+(2-1 23/35)÷9/25-1 2/7 и еще один (−120 + 93) : (−3). даю 20 баллов плиз срочно

Answer 1

$\frac{5}{6} + (2 - 1 \frac{23}{25} ) \div \frac{9}{25} - 1 \frac{2}{7} = \\ = \frac{5}{6} + \frac{2 \times 25}{25 \times 9} - 1 \frac{2}{7} = \\ = \frac{5}{6} + \frac{2}{9} - \frac{9}{7} = \\ = \frac{105}{126} + \frac{28}{126} - \frac{162}{126} = - \frac{29}{126}$

$( - 120 + 93) \div ( - 3) = \\ = ( - 27) \div ( - 3) = 9$