Question

Efetue 2/5+3/4-1/6=? e 7/2-1/5+2/7=?

Answer 1

2/5+3/4-1/6 = 59/60
7/2-1/5+2/7= 251/70

Answer 2

2/5+3/4-1/6= 24/60+45/60-10/60= 69/60-10/60= 59/60
5,4,6 - 2
5,2,3 - 2
5,1,3 - 3
5,1,1  - 5
1,1,1= 60