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b) 1 2/5+3 4/10+2 1/2=1 4/10+3 4/10+2 5/10=7 13/10=8 3/10
c) 4 1/3-2 2/5+1 1/5=4 10/30-2 12/30+1 6/30=1 28/30=1 6/30=2 34/30=3 4/30=3 2/15
d) 7-3 1/3- 2 1/8=7-3 8/24-2 3/24=3 16/24-2 3/24=1 13/24
Mam nadzieję, że pomogłam ;) Liczę na naj :)