Question

Oblicz pamietajac o skracaniu
9/20 * 5/18
13/60 * 15/26
3/5*1/8*10/3
3/7*14/15*10/21
5/12*9/40*8/15
15/27*12/25*5/24
46/39*3/8*13/23

Answer 1

9/20*5/18=1/8 ( 9 i 18 skracasz na 1 i 2 , 5 i 20 skracasz na 1 i 4)
13/60*15/26=1/8 (13 i 26 skracasz na 1 i 2, 15 i 60 skracasz na 1 i 4)
3/5*1/8*10/3=2/8=1/4 (3 i 3 skracasz na 1 i 1, 5 i 10 na 1 i 2)
3/7*14/15*10/21=20/105 (7 i 14 na 1 i 2, 3 i 15 na 1 i 5)
5/12*9/40*8/15=9/15=3/5 (5 i 15 na 1 i 3, 40 i 8 na 5 i 1)
15/27*12/25*5/24=15/270=1/18 (12 i 24 na 1 i 2, 5 i 25 na 1 i 5)
46/39*3/8*13/23=6/24=3/8 (46 i 23 na 2 i 1,13 i 39 na 3 i 1)