Răspuns:
Explicație pas cu pas:
a)7/2+7/4=7(2+1)/4=21/4
b)8/3+17/5=(8×5+17×3)/15=(40+51)/15=91/15
d)35/6+7/4=(35×2+7×3)/12=(70+21)/12=91/12
c)11/4+29/8=(11×2+29)/8=51/8
e)47/10+13/4=(47×2+13×5)/20=159/20
f) 61/9+17/6=(61×2+17×3)/18=173/18
