Question

выполните действия 9/20+8/15 16/21-5/28 7/12-5/18+23/72

Answer 1

9/20*3+8/15*4=27/60+32/60=59/60

16/21*4-5/28*3=64/84-15/84=49/84=7/12

7/12*6-5/18*4+23/72=42/72-20/72+23/72=45/72=5/8