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b-2,54 + 0,46=3
c- 1 1/5+ 5 4/5=6
d- 2,61+ 1,39=4
e- 6 - 6/7=5 1/7
f- 3- 1,77
Liczę na NAJ
x= 6-3 7/8
x= 5 8/8-3 7/8
x= 2 1/8
b) 2,54+0,46=3
c) 1 1/5+x=6
x=6-1 1/5
x= 5 5/5 - 1 1/5=
x= 4 4/5
d) 2,61 +1,39=4
e) 6 - x = 5 1/7
x= 6- 5 1/7
x= 5 7/7 - 5 1/7
x= 6/7
f) 3 - x = 1,23
x= 3-1,23
x= 1,77