61. Шлях (l) = 63*2*60/3=63*40=2520
62. 1) 14ab/36=7ab/18
2) 8x/9*9y/5=8xy/5
3) 5m*28n/11*33k/14=30mnk
61. Шлях (l) = 63*2*60/3=63*40=2520
62. 1) 14ab/36=7ab/18
2) 8x/9*9y/5=8xy/5
3) 5m*28n/11*33k/14=30mnk