4/5 + 3/4 =

i really need on this im a seventh grader but i don’t remember learning this

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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23

step-by-step explanation:

your answer would be 10x - 1