SzczegółowOdpowiedź:
a)
3/5 * 2/7 = 6/35
b)
4/5 * 3/8 = 1/5 * 3/2 = 3/10
c)
3/4 * 8/9 = 2/3
d)
7/15 * 10/21 = 1/3 * 2/3 = 2/9
e)
2 3/4 * 1/2 = 11/4 * 1/2 = 11/8 = 1 3/8
f)
5/9 * 4 1/10 = 5/9 * 41/10 = 1/9 * 41/2 = 41/18 = 2 5/18
g)
2 1/2 * 5 1/3 = 5/2 * 16/3 = 5 * 8/3 = 40/3 = 13 1/3
h)
3 3/4 * 4 1/5 = 15/4 * 21/5 = 3/4 * 21 = 63/4 = 15 3/4
i)
5 6/7 * 4 2/3 = 41/7 * 14/3 = 41 * 2/3 = 82/3 = 27 1/3
j)
4/5 * 2/9 * 6/7 * 7/8 = 1/5 * 1/3 * 2 = 2/15
k)
4/7 * 1 3/4 * 3 1/2 = 4/7 * 7/4 * 7/2 = 7/2 = 3 1/2
l)
1 5/8 * 3 1/5 * 2/26 = 13/8 * 16/5 * 1/13 = 2/5
Szczegolowe wyjaśnienie:
