95-16-38=95-(16+38)
A-B-C=A-(B+C)
1. 47 + 16 = 63
2. 63 - 4 = 59
3. 33 + 28 = 61
4. 238 - 59 = 179
5. 179 - 61 = 118
= 118
Ответ: 99/460
Пошаговое объяснение:
1) 3/5 + 3/28 = 84/140 + 15/140 = 99/140
2) 99/140 ÷ 3целых 2/7 = 99/140 ÷ 23/7 = 99/140 × 7/23 = 99/20 × 1/23 = 99/460