Respuesta :

vanillanekox3

Answer:

His mistake was adding the numerators together without converting the fractions to have a common denominator

Step-by-step explanation:

3/5 + 7/10

convert fractions to have common denominator

6/10 + 7/10 = 13/10

convert improper fraction to mixed number

1 3/10

He ran a total of 1.3 miles

wegnerkolmp2741o

Answer:

see below

Step-by-step explanation:

3/5 + 7/10

We did not get a common denominator

He added the numerators and got 10/10 = 1

He should get a common denominator

3/5 * 2/2   + 7/10

6/10 + 7/10

13/10

10/10 + 3/10

1  3/10 miles

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