Question

Вычислите (1 3/4 + 0,91 ):1,4 +(1 1/5 - 1,911)* 1 21/79

Answer 1

(1 3/4+0.91):1,4+(1 1/5-1,911)*1 21/79=  - 7,1
1) 1 3/4+0,91=1,75+0,91=2,66
2) 2,66:1,4= 1,9
3) 1 1/5-1,911= 1,2-1,911= - 0,711
4) -0,711*1 21/79= -711/100*100/79= - 711/79 = -9
5) 1,9 + (-9) =1,9-9= -7,1