Question

Помогите срочно ! 3 7/12-2 3/4+5 2/12=
5 7/10+3 2/15-1 1/2=. 17 5/8-(6 7/24+5 1/12)=.

Answer 1

$3 \frac{7}{12} - 2 \frac{3}{4} + 5 \frac{2}{12} = \\ \\ = 3 \frac{7}{12} - 2 \frac{9}{12} + 5 \frac{2}{12} = \\ \\ = 8 \frac{9}{12} - 2 \frac{9}{12} = 6$
__________

$5 \frac{7}{10} + 3 \frac{2}{15} - 1 \frac{1}{2} = \\ \\ = 5 \frac{21}{30} + 3 \frac{4}{30} - 1 \frac{15}{30} = \\ \\ = 8 \frac{25}{30} - 1 \frac{15}{30} = 7 \frac{10}{30} = 7 \frac{1}{3}$
__________

$17 \frac{5}{8} - (6 \frac{7}{24} + 5 \frac{1}{12} ) = \\ \\ = 17 \frac{15}{24} - (6 \frac{7}{24} + 5 \frac{2}{ 24} ) = \\ \\ = 17 \frac{15}{24} - 11 \frac{9}{24} = \\ \\ = 6 \frac{6}{24} = 6 \frac{1}{4} = 6.25$