Решить 3/16*1 3/5: (7 1/2*1/10-3/5)-3 1/2: 4 2/3 - вопрос №505533031613571211035312423 от crystall5555 14.12.2021 15:04

Question

Математика: Решить 3/16*1 3/5: (7 1/2*1/10-3/5)-3 1/2: 4 2/3

crystall5555 · Answer

3/16 * 1 3/5 : (7 1/2 * 1/10 - 3/5) - 3 1/2 : 4 2/3 = 3 1/4
1) 7 1/2 * 1/10 = 15/2 * 1/10 = 3/4
2) 3/4 - 3/5 = (15-12)/20 = 3/20
3) 3/16 * 1 3/5 = 3/16 * 16/5 = 3/5
4) 3/5 : 3/20 = 3/5 * 20/3 = 4
5) 3 1/2 : 4 2/3 = 7/2 : 14/3 = 7/2 * 3/14 = 3/4
6) 4 - 3/4 = 3 1/4