Question

Oblicz,pamiętając o skracaniu !!!
1/3*6/7=? * to razy
4/5*5/6=? / to kreska ułamkowa
5/8*4/10=?
2/5*15*6=?
3/5*5/6=?
12/25*15/4=?
9/20*5/18=?
13/60*15/26=?
3/7*14/15*10/21=?
15/12*9/40*8/15=?
15/27*12/25*5/24=?
46/39*3/8*13/23=?
pliska daje naj i 23 pkt

Answer 1

1/3 * 6/7 = 2/7
4/5 * 5/6 = 2/3
5/8 * 4/10 = 1/4
2/5 * 15/6 = 1
3/5 * 5/6 = 1/2
12/25 * 15/4 = 9/5 = 1 4/5
9/20 * 5/18 = 1/8
13/60 * 15/26 = 1/8
3/7 * 14/15 * 10/21 = 2/5 * 10/21 = 4/21
15/12 * 9/40 * 8/15 = 9/60 = 3/20
15/27 * 12/25 * 5/24 = 1/18
46/39 * 3/8 * 13/23 = 1/4