Question

Найдите значение суммы : 2)-72+3 5/8+(-0,75), 4)-83,4+(-19 2/3)+(-4/15)

Answer 1

2) -72+3 5/8 +( -0,75)=-(72+0,75=72,75)=72,75+3 5/8 =(72,75- 3 5/8 ) = - 72 75/100-3  5/8)=-(72 3/4-3 5/8 = - 69 5/8 )= - 69 5/8