7/8:4/5+5/6*3/4+3/4:4/5 Вычислите

Question

7/8:4/5+5/6*3/4+3/4:4/5
Вычислите

Answer 1

7/ 8 × 4 / 5 + 5 / 6 × 3 / 4 + 4 / 5: 16 = 7 / 10 + 5 / 8 + 1 / 20 = 28 / 40 + 25 / 40 + 2 / 40 = 55/ 20 = 2,75