1. 4 1/6+(2 3/4-2 1/6): 2 4/5-1 3/8 2. (3 5/6-2 3/4): - вопрос №5487160141623421624513823562347125123223213 от DiroL21 24.09.2020 03:16

Question

Математика: 1. 4 1/6+(2 3/4-2 1/6): 2 4/5-1 3/8 2. (3 5/6-2 3/4): 7/12+5 1/2 3. 2 2/3(2 1/3+2 5/12)-4 4/5 9-3 1/5х1 2/3+1 1/3

DiroL21 · Answer

1. 1)2 3/4-2 1/6=11/4-13/6=33/12-26/12=7/12 2)7/12: 2 4/5=7/12: 14/5=7/12*5/14=5/84 3)4 1/6+5/84=25/6+5/84= 350/84+5/84=355/84 4)355/84-1 3/8=355/84-11/8=710/168-231/168=941/168...