Question

Помогите 2/7 +1/3 2/25+1/20 11/12-2/3 2/3-5/9 5/21-3/14?СРОЧНО

Answer 1

2/7+1/3=6/21+7/21=13/21
2/25+1/20=8/100+5/100=13/100=0,13
11/12-2/3=11/12-8/12=3/12=1/4
2/3-5/9=6/9-5/9=1/9
5/21-3/14=10/42-9/42=1/42