1) 12/108 = 12/(2*6*9) = 1/9; 70/182 = 35/91 = (5*7)/(7*13) = 5/13
1/9 = 13/(9*13) = 13/117; 5/13 = (5*9)/(13*9) = 45/117
2) 14/35 = 2/5; 20/45 = 4/9
2/5 = 18/45; 4/9 = 20/45
3) 8/64 = 1/8; 175/280 = 5/8
Они уже имеют общий знаменатель 8
4) 14/21 = 2/3; 36/96 = 3/8
2/3 = 16/24; 3/8 = 9/24
1) 12/108 = 12/(2*6*9) = 1/9; 70/182 = 35/91 = (5*7)/(7*13) = 5/13
1/9 = 13/(9*13) = 13/117; 5/13 = (5*9)/(13*9) = 45/117
2) 14/35 = 2/5; 20/45 = 4/9
2/5 = 18/45; 4/9 = 20/45
3) 8/64 = 1/8; 175/280 = 5/8
Они уже имеют общий знаменатель 8
4) 14/21 = 2/3; 36/96 = 3/8
2/3 = 16/24; 3/8 = 9/24