Respuesta :
17/20
work out the lcm...u will get 20
5*4=20 so the neumerator is also multiplied by 4
3*4=12
the same goes with the other fraction
4*5=20 so 1*5=5
12+5=17
so the final ans is 17/20
work out the lcm...u will get 20
5*4=20 so the neumerator is also multiplied by 4
3*4=12
the same goes with the other fraction
4*5=20 so 1*5=5
12+5=17
so the final ans is 17/20