word problems! ( elementary math)

Question

Kevin ran 6/7 miles and his brother James ran 10 miles. How many miles did the two of them run?​

Answer 1

They ran 10 and 6/7 miles or 76/7 miles. This can be figured out by adding out the 6/7 miles Kevin ran and the 10 miles James ran.

10+(6/7)=(70/7)+(6/7)=76/7

Answer 2

To solve the problem, it is best to change the 10 miles into a fraction that can easily be added to 6/7. Kevin ran 6/7 miles and James ran 10 miles. The common denominator of 6/7 and 10 is 7. So, you multiply 7 and 10 to get 70 and put 7 as the denominator. Now James runs 70/7 miles and you can add 70/7+6/7 to get 76/7 miles. 76/7 miles is the answer.

Answer 3

To add the fractions together you would need to convert 10 to 70/7 and then add to 6/7 which means the answer would be 76/7 miles.

To add fractions, you must have a common denominator.