4 7/32 -(3 3/4-1 7/32)
1) 3 3/4 - 1 7/32 = 15/4 - 39/32 = (15 × 8 - 39 × 1)/32 = 120/32 - 39/32 = 81/32 = 2 17/32 2) 4 7/32 - 2 17/32 = 135/32 - 81/32 = 54/32 = 27/16 = 1 11/16 Ответ: 1 11/16