Question

Zad 1
Oblicz:
a) 3/5 x 2/7 =
b) 4/5 x 3/8 =
c) 3/4 x 8/9 =
d) 7/15 x 10/21 =
e) 2 3/4 x 1/2 =
f) 5/9 x 4 1/10 =
g) 2 1/2 x 5 1/3 =
h) 3 3/4 x 4 1/5 =
i) 5 6/7 x 4 2/3 =
j) 4/5 x 2/9 x 6/7 x 7/8 =
k) 4/7 x 1 3/4 x 3 1/2 =
l) 1 5/8 x 3 1/5 x 2/26 =
plis pomóżcie dam naj