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afla suma dintre 3/7din 63si4/9din217


Răspuns :

3/7*63+4/9*217=3*63/7+4*217/9=189/7+868/9=27+96,4=123,4
3/7×63+4/9×217
simplifici 7 cu 63
3×9+868/9
27+868/9
amplifici pe 27 cu 9
(9×27)/9+868/9
243/9+868/9
1111/9