Răspuns:
Explicație pas cu pas:
a)(3×4+5×2+15)/44=(12+10+15)/44=37/44
b)(7×100+3×10+5)/1000=(700+30+5)/1000=735/1000=0,735
c)2/3+7/4+3/5=(2×20+7×15+3×12)/60=181/60
d)1/5+7/5+3/5=(1+7+3)/5=11/5
e)(3×3+4×5+6×7)/96=(9+20+42)/96=71/96
f)6/13+8/13+7/13=(6+8+7)13=24/13
g)7/10+1/20+3/20=(2×7+1+3)/20=18/20=9/10
h)4/3+8/9+2/3=(4×3+8+2×3)/9=(12+8+6)/9=26/9
