Question

Выполни сложение 1 4/7+2 3/21;5 1/4+ 3 8/11;4-2/3;5 1/4-3 7/8.

Answer 1

1 4/7+2 3/21=4/7+2 1/7=4/7+2/7=6/7

5 1/4+ 3 8/11=5/4+24/11=151/44=3 19/44

4-2/3=12-2/3=10/3=3 1/3

5 1/4-3 7/8=5/4+21/8=31/8