Question

ПРИМЕРЧИКИ!

1. (1 3/4+0,91):1 4/10+(1 1/5-1,911)*1 21/79

2. 3 1/2*4/49-(2(4)*2 5/11):(-42/5)​

Answer 1

Пошаговое объяснение:

1

1) 1 3/4 + 0,91 = 7/4 + 91/100 = 175/100 + 91/100 = 266/100

2) 266/100 : 1,4 = 266/100 : 14/10 = 266/100 * 10/14 = 19/10

3) 1 1/5 - 1,911 = 6/5 - 1911/1000 = 1200/1000 - 1911/1000 = -711/1000

4) -711/1000 * 1 21/79 = -711/1000 * 100/79 = -9/10

5) 19/10 + (-9/10) = 10/10 = 1

2

2,794805195