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

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

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

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