Question

Вычеслите а) 15/+1016/20-12/8
b) 17/21+19+42-12/63 c) 2/3 +1 1/2 - 1/4
d) 1 4/5-3/4+7/10 e) (3/6-1/4) + (1/2-1/3) f) 1( 3/5-3/10) + (1/4 -1/8)

Answer 1

Пошаговое объяснение:

a) 15 + 1016/20 - 12/8 = 15 + 50.8 - 1.5 = 64.3

b) 17/21 + 19 + 42 - 12/63 = 0.8095 + 19 + 42 - 0.1905 = 61.619

c) 2/3 + 1 1/2 - 1/4 = 2/3 + 3/2 - 1/4 = 8/12 + 18/12 - 3/12 = 23/12

d) 1 4/5 - 3/4 + 7/10 = 5/5 + 4/5 - 3/4 + 7/10 = 1 + 0.8 - 0.75 + 0.7 = 1.75

e) (3/6 - 1/4) + (1/2 - 1/3) = (0.5 - 0.25) + (0.5 - 0.3333) = 0.25 + 0.1667 = 0.4167

f) 1(3/5 - 3/10) + (1/4 - 1/8) = 1(0.6 - 0.3) + (0.25 - 0.125) = 1(0.3) + 0.125 = 0.3 + 0.125 = 0.425