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Calculeaza a.3/4+5/4-2/4;b.6/8-2/8+3/8;c.1/9+8/9-5/9;d.6/10-4/10+5/10..Vă rog!

Răspuns :

Răspuns:

3/4+5/4-2/4=6/4=3/2

6/8-2/8+3/8=7/8

1/9+8/9-5/9=4/9

6/10-4/10+5/10=7/10

3/4+5/4=8/4-2/4=6/4

1/9+8/9=9/9-5/9=4/9

6/10-4/10=2/10+5/10=7/10

6/8-2/8=4/8+3/8=7/8