Вычислите 2/9 + 3/8 5/12 + 4/15 7/34 + 5/51 9/180 + 7/120 3/20 + 7/30 + 2/40 7/40 +...

Question

Вычислите
2/9 + 3/8
5/12 + 4/15
7/34 + 5/51
9/180 + 7/120
3/20 + 7/30 + 2/40
7/40 + 11/70 + 13/30

Answer 1

2/9 + 3/8=16/72+27/72=43/72
5/12 + 4/15=25/60+16/60=41/60
7/34 + 5/51=21/102+10/102=31/102
9/180 + 7/120=18/360+21/360=39/360=13/120
3/20 + 7/30 + 2/40 =18/120+28/120+6/120=52/120=13/30
7/40 + 11/70 + 13/30=147/840+132/840+364/840=643/840