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URGENT!!!!Ziceti-mi 10 exercitii cu fractii de clasa a 5-a

Răspuns :

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2/3*4/5=8/15
8/4-4/4=4/4=1
5/7+8/7=13/7
7/3:6/7=7/3*7/6=49/18
10/1+9/1=10+9=19
27/3-13/3=14/3
5/6+4/6=9/6
9/3:6/4=9/3*4/6=(simplificam)=3*4/3*2=12/6=2
7/6+3/6=10/6
10/10-9/10=1/10

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