(5/14+10/21)*3 3/5 + 1 1/6 /(13/22-25/33) решить - вопрос №5797214514102133511613222533 от Moon133 26.11.2020 06:19

Question

Математика: (5/14+10/21)*3 3/5 + 1 1/6 /(13/22-25/33) решить по действиям!

Moon133 · Answer

1) 5/14 + 10/21 = 15/42 + 20/42 = 35/42 = 5/6
2) 13/22 - 25/33 = 39/66 - 50/66 = - 11/66 = - 1/6
3) 5/6 * 3 3/5 = 5/6 * 18/5 = 18/6 = 3
4) 1 1/6 * ( - 1/6 ) = 7/6 * ( - 1/6 ) = - 7/42 = - 1/6
5) 3 + ( - 1/6 ) = 2 ( 6/6 ) - 1/6 = 2 5/6
ОТВЕТ 2 ( 5/6 )