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10. Calculați:
a) (1/2+3/4+5/6)+(1/2+1/4+1/6)

b) (3/2+7/5+5/9)+(3/2+8/5+22/9)



( ,,/" inseamna supra)


Va rog repedee ​


Răspuns :

Răspuns:

Sper ca te-am ajutat!))

Explicație pas cu pas:

a) (1/2 + 3/4 + 5/6) + (1/2 + 1/4 + 1/6) = (3/6 + 3/4 + 5/6) + (3/6 + 1/4 + 1/6) = 11/6 + 5/4 = (22/12) + (15/12) = 37/12.

b) (3/2 + 7/5 + 5/9) + (3/2 + 8/5 + 22/9) = (27/18 + 14/18 + 10/18) + (27/18 + 16/18 + 22/18) = 51/18 + 65/18 = 116/18 = 58/9.