Question

Скажите пж...!!
Задание1)(3 16 + 5 1/7 ):349=
Задание2)42,8*1/2 -2,8*1/2
Задание3)11,9:0,34+2,4*3,5
Задание4)13576,94:79-22,67
СКАЖИТЕЕЕ ПЖЖЖ!..Прошуу

Answer 1

$1)(3 frac{1}{6} + 5 frac{1}{7} ) div 349 = ( frac{19}{6} + frac{36}{7} ) div 349 = frac{349}{42} div 349 = frac{349}{42} times frac{1}{349} = frac{1}{42}$
$2)42.8 times frac{1}{2} - 2.8 times frac1{1}{2} = frac{214}{5} times frac{1}{2} - frac{14}{5} times frac{1}{2} = frac{107 - 7}{5 } = frac{100}{5} = 20$
$3)11.9 div 0.34 + 2.4 times 3.5 = 35 + 8.4 = 43.4$
$4)13576.94 div 79 - 22.67 = 171.86 - 22.67 = 149.19$