(1 целые 17/25*2 целые 1/7-2 целые 4/7+2/5)

Question

(1 целые 17/25*2 целые 1/7-2 целые 4/7+2/5)

Answer 1

1 17/25×2 1/7-2 5/7+2/5
а) 1 17/25× 2 1/7=42/25×15/7=630/175=126/35=18/5=3 3/5
б) 3 3/5+2/5=18/5+2/5=20/5=4
в) 4- 2 5/7=4/1-19/7=28/7-19/7=10/7=1 3/7