Question

Scrieti sub forma de fractie zecimala. .. .. a) 40+3+5/10+6/100.........b) 3×100+0×10+5+1/10+0/100+7/1000

Answer 1

a) 40/1 + 3/1 +5/10 +6/100
    40/1+ 3/1 + 1/2 (am simplificat 5/10 prin 5) + 3/50(am simplificat 6/100 prin 2)
    80/2 +6/2 +1/2 (am adus la acelasi numitor) +3/50
    2175/50 (am amplificat 80/2 cu 25) +3/50
   =2178/50= 43,56