Matthew ran 3/8 mile and then walked 7/10 mile. which pair of fractions can he use to find how far he went in all? (a 15/40 and 28/40 (b 35/40 and 21/40 (c 35/40 and 37/40 (d 30/80 and 70/80 * *

Before we could add these numbers, 3/8 and 7/10 need a common denominator. Both 8 and 10 go into 40.

8 goes into 40 five times
3/8= (3*5)/40 = 15/40

10 goes into 40 four times
7/10= (7*4)/40= 28/40

ANSWER: A) 15/40 and 28/40

Hope this helps! :)

It's like discovering the answer to a puzzle. the purpose in solving an equation is to find the value or values of the variable that makes it a true statement. any value of the variable that makes the equation true is called a solution to the equation.