Question

calculati: a) 1/2+1/4+3/8. b) 3/4+5/6+1/2. c) 1/2+1/3+1/6+1/9+1/12. Ajutatima varoggggggg

Answer 1

a) 1/2 amplificam cu 4 si devine 4/8
     1/4 amplificam cu 2 si devine 2/8
     3/8 il lasam asa
Le adunam
4/8 + 2/8 + 3/8 = 9/8
b) 3/4 amplificam cu 3 si devine 9/12
  5/6 amplificam cu 2 si devine 10/12
1/2 amplificam cu 6 si devine 6/12 
Le adunam
9/12 + 10/12 + 6/12 = 25/12
c) 1/2 amplificam cu 18 si devine 18/36
1/3 amplificam cu 12 si devine 12/36
1/6 amplificam cu 6 si devine 6/36
1/9 amplificam cu 4 si devine 4/36
1/12 amplificam cu 3 si devine 3/36
Le adunam
18/36 + 12/36 + 6/36 + 4/36 + 3/36 = 43/36