Respuesta :
Answer:
1 11/20
Step-by-step explanation:
Find a common denominator. Note that what you do to the denominator, you do to the numerator.
Multiply 4 to both the numerator and denominator of the fraction (4/5), and 5 to both the numerator and denominator of the fraction (3/4)
(4/5)(4/4) = 16/20
(3/4)(5/5) = 15/20
Add:
16/20 + 15/20 = (16 + 15)/20 = 31/20
Simplify. Change the improper fraction into a mixed fraction:
31/20 = (20 + 11)/20 = 1 11/20
1 11/20 is your answer.
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What number does each denominator multiply to?
Let’s try 20
5*4 = 20 so 4 *4 =16
16/20
4*5=20
5*3=15
15/20
Now they both have the same denominator so you could add them:
15/20 + 16/20 = 31/20
our answer is 31/20
Let’s try 20
5*4 = 20 so 4 *4 =16
16/20
4*5=20
5*3=15
15/20
Now they both have the same denominator so you could add them:
15/20 + 16/20 = 31/20
our answer is 31/20