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calculati in modul cel mai eficient:a) 4intreg si 1/9*5/8+3intreg si 5/9*5/8+1intreg si 1/3*5/8= ajutatima urgent va roooooooooooooooggggggggg!!!!!!!!!!

Răspuns :

introducem intregii in fractii
37/9·5/8+32/9·5/8+4/3·5/8= (factor comun 5/8)
=5/8(37/9+32/9+12/9)= (am amplificat 4/3 cu 3 ca sa obtin numitor 9)
=5/8·81/9=5/8·9=45/8=5 5/8 (5 intregi si 5/8)