Yuri mixed 3/4 of a gallon of pineapple juice with 5/8 of a gallon of orange juice to make a fruit punch. How many gallons of fruit punch did Yuri make?

1 3/8 the denominators have to be the same so you multiply 2 to 3/4 to get 6/8 btw they are common denominators so you can easily multiply two and the you add the to get 11/8 and if you simplify it you'll get 1 3/8