Question

найдите значение выражения 8/15*25/32+1  3/4 ;  2  1/6-2/3*7/12

Answer 1

8/15• 25/32 +1 3/4= 5/12 +1 3/4=2 1/6
2 1/6 - 2/3•7/12=2 1/6 - 7/18 = 1 7/9

Answer 2

$frac{8}{15}* frac{25}{32}= frac{5}{12}$
$frac{5}{12}+1 frac{3}{4}= frac{5}{12}+ frac{7}{4}= frac{5+21}{12}= frac{26}{12}=2 frac{2}{12}=2 frac{1}{6}$

$frac{2}{3}* frac{7}{12}= frac{7}{18}$
$2 frac{1}{6}- frac{7}{18}= frac{13}{6}- frac{7}{18}= frac{39-7}{18}= frac{32}{18}= frac{16}{9}=1 frac{7}{9}$