Respuesta :

Sunflower289

Answer:

Step-by-step explanation:

First you have to make them both have common denominators using a common factor between both denominators(20)

3/5 time since 4/4 is equal to 12/20

1/4 times 5/5 is equal to 5/20

12/20 + 5/20=17/20

nicnunyal05

Answer:

85/100 or 17/20

Step-by-step explanation:

  1. get denominator to the same number
  2. then add across