Решить: 2,6-1 2/7 ; (11 2/3-8 3/4)+(3 1/3+2 5/6)-4 7/12

Question

Решить: 2,6-1 2/7 ; (11 2/3-8 3/4)+(3 1/3+2 5/6)-4 7/12

Answer 1

2,6-1 2/7= 2 6/10-1 2/7=2 3/5-1 2/7=2 21/35-1 10/35=1 11/35

(11 2/3-8 3/4)+(3 1/3+2 5/6)-4 7/12=(11 8/12-8 9/12)+(3 2/6+2 5/6)-4 7/12=
=(2 -1/12)+5 7/6-4 7/12=1 11/12+6 1/6-4 4/12=1 11/12+6 2/12-4 4/12=
=7 13/12-4 4/12=3 9/12=3 3/4

Comments

спасибо