Question

( 3 5/6 - 1 2/15) * 5/9 + (( 1/20 + 0,24 ) * 8 1/3 - 1 1/6 ) * 2 помогите пожалуйста​

Answer 1

(3 5/6 - 1 2/15) · 5/9 + ((1/20 + 0,24) · 8 1/3 - 1 1/6) · 2 = 4

1) 3 5/6 - 1 2/15 = 3 25/30 - 1 4/30 = 2 21/30 = 2 7/10

2) 2 7/10 · 5/9 = 27/10 · 5/9 = (3·1)/(2·1) = 3/2 = 1 1/2

3) 1/20 + 0,24 = 1/20 + 24/100 = 5/100 + 24/100 = 29/100

4) 29/100 · 8 1/3 = 29/100 · 25/3 = (29·1)/(4·3) = 29/12 = 2 5/12

5) 2 5/12 - 1 1/6 = 2 5/12 - 1 2/12 = 1 3/12 = 1 1/4

6) 1 1/4 · 2 = 5/4 · 2 = 5/2 = 2 1/2

7) 1 1/2 + 2 1/2 = 3 2/2 = 4

Ответ: 4.