1)15/16 - 3/32= 2)3/50+18/25= 3)7/15+1/3= 4)43/62-10/31= заранее распишите подробней

1) 15/16-3/32 = 15*2/16*2 - 3/32 = 30/32 - 3/32 = 27/32

2) 3/50 +18/25 = 3/50 + 18*2/25*2=3/50+36/50=39/50

3) 7/15 + 1/3 = 7/15 + 5*1/5*3= 7/15 + 5/15 = 12/15 = 4/5

4) 43/62 - 10/31 = 43/62 - 10*2/31*2= 43/62 - 20/62 = 23/62