September 2018 1 10 Report

1: Oblicz, pamiętając o skracaniu.

a) 9/20 x 5/18 =

b) 13/60 x 15/26 =

c) 3/5 x 1/8 x 10/3 =

d) 3/7 x 14/15 x 10/21 =

e) 5/12 x 9/40 x 8/15=

f) 15/27 x 12/25 x 5/24 =

g) 46/39 x 3/8 x 13 =

2. Uzupełnij brakujące liczby

a) ( ) x 1 1/2 = 1

b) 11/4 x ( ) x 4/11 = 1

c) 5 3/5 x ( ) = 1

d) 2/9 x ( ) x 4/11 = 1

e) 7 1/3 x ( ) x 3/2 = 7 1/3

f)1 2/5 x 5/7 ( ) = 7/5


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