3/8 * 5 + 5/56 - 1/7 : 1/5 = 1,25
1) 3/8 * 5 = 15/8
2) 1/7 : 1/5 = 1/7 * 5/1 = 5/7
3) 15/8 + 5/56 = 105/56 + 5/56 = 110/56
4) 110/56 - 5/7 = 110/56 - 40/56 = 70/56 = 1 14/56 = 1 1/4 = 1,25
ответ: 1,25
3/8 * 5 + 5/56 - 1/7 : 1/5 = 1,25
1) 3/8 * 5 = 15/8
2) 1/7 : 1/5 = 1/7 * 5/1 = 5/7
3) 15/8 + 5/56 = 105/56 + 5/56 = 110/56
4) 110/56 - 5/7 = 110/56 - 40/56 = 70/56 = 1 14/56 = 1 1/4 = 1,25
ответ: 1,25