January 2019 1 20 Report
Oblicz:
a) 8/15 - 13/15 =
b) - 2 3/8 + ( - 5 ) =
c) - 7 2/9 + 1 2/9 =
d) 6 5/13 + ( - 2 12/13 ) =
e) 1/6 + ( - 3/4 ) =
f) 7 1/2 + ( - 9 1/3 ) =
g) 7/15 - ( - 2 1/6 ) =
h) - 10 - ( - 4 1/5 ) =

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