Question

1)9,21+ 7 целых 3/20
2)10-6 целых 1/2
3)9,21+ 7 целых 3/20*10-6 целых 1/2

Answer 1

$1)9.21+7 frac{3}{20} =9.21+7 frac{15}{100} =9.21+7.15\=16.36 \ \ 2)10-6 frac{1}{2} =10-6 frac{5}{10} =10-5.6=4.4 \ \ 3)9.21+7 frac{3}{20} *10-6 frac{1}{2} =9.21+7.15*10-6.2= \ \ =9.21+71.5-6.2=74.51$