1. 1/2 + 1/3 =
   • 2/6 + 1/6 = 3/6
   • 3/6 + 2/6 = 5/6
   • 1/6 + 1/6 = 2/6
2. 1/3 + 1/4 =
   • 4/12 + 3/12 = 7/12
   • 1/12 + 2/12 = 3/12
   • 3/12 + 2/12 = 5/12
3. 1/2+2/3+3/4=
   • 6/24 + 7/24 + 8/24 = 21/24
   • 12/24 + 16/24 + 18/24 = 46/24
   • 2/24 + 3/24 + 5/24 = 10/24
4. 1/3 + 1/6 =
   • 2/18 + 1/18 = 3/18
   • 6/18 + 3/18 = 9/18
   • 3/18 + 6/18 = 9/18

Volver a: Suma de fracciones con distinto denominador