Решите: (3 1/4+2 1/6): 2 3/5-2/3*2 1/4+5 1/6= - вопрос №562530731421623523214516 от wwwghg 04.03.2021 05:36

Question

Математика: Решите: (3 1/4+2 1/6): 2 3/5-2/3*2 1/4+5 1/6=

wwwghg · Answer

1) 3 1/4+ 2 1/6 = 13/4 + 13/6 = 39/12 + 26/12 = 65/12
2) 65/12 : 2 3/5 = 65/12 : 13/5 = 25/12
3) 2/3 * 2 1/4 = 2/3 * 9/4 = 3/2
4) 25/12 - 3/2 = 25/12 - 18/12 = 7/12
5) 7/12 + 5 1/6 = 7/12 + 31/6 = 7/12 + 62/12 = 69/12 = 5 9/12 = 5 3/4
ответ в примере: 5 3/4