Question

1.Oblicz pamientając o skracaniu

a) 7/9 X 4=
b)8 X 5/12=
c)12 X 4/15=
d) 40 X 5/32=
e) 4 1/2 X 8=
f) 5 X 1 1/3=
g) 8 X 6 7/8=

Answer 1

Witaj!
a)
7/9 X 4= 28/9 = 3 i 1/9
b)
8 X 5/12= 40/12 = 3 i 4/12 = 3 i 1/3
c)
12 X 4/15= 48/15 = 3 i 3/15 = 3 i 1/5
d)
40 X 5/32= 200/32 = 6 i 8/32 = 6 i 1/4
e)
4 1/2 X 8= 9/2 X 8 = 72/2 = 36
f) 
5 X 1 1/3= 5 X 4/3 = 20/3 = 6 i 2/3
g)
8 X 6 7/8= 8 X 55/8 = 440/8 = 55

Pozdrawiam ;-) 

Answer 2

7/9x4=28/9
8x5/12=10/3
12x4/15=16/5
40x5/32=25/4
4i 1/2x8=36
5X1 i 1/3=20/3
8 X 6 7/8=55