Question

a) 2 целых 1/12 * 0,8 b) 2 целых 1/4 * 7/9 + 2/9 * 2 целых 1/4

Answer 1

а)2 1/12*8/10=13/12*8/10=13/15
б)2 1/4*7/9+2/9*2 1/4=2 1/4*(7/9+2/9)=2 1/4

Answer 2

$2 frac{1}{12} times 0.8 = frac{25}{12} times frac{8}{10} = frac{5 times 2}{3 times 2} =$

$frac{10}{6} = frac{5}{3} = 1 frac{2}{3}$

$2 frac{1}{4} times frac{7}{9} + frac{2}{9} times 2 frac{1}{4} = 2 frac{1}{4} times ( frac{7}{9} +$

$frac{2}{9} ) = frac{9}{4} times ( frac{9}{9} ) = frac{9}{4} times 1 = frac{9}{4} =$


$2 frac{1}{4}$

Answer 3

Здравствуйте, можете пожалуйста помочь с литературой?