SUMA DE FRACCIONES

a/b + c/b = a+c/b

a/b + c/d = ad + bc/bd

1. 5/4 + 7/3 = 15 +28/12 = 15/12 + 28/12 = 43/12

2. 3/1 + 5/7 = 21/7 + 5/7 = 26/7

3. 11/5 + 3/4 = 44+15/20= 59/20

4. 3/5+8/6= 29/15