Question

Jonah runs 3/5 miles on Sunday and 7/10 miles on Monday.He uses the model to find that he ran a total of 1 mile. What mistake does Jonah make

Answer 1

Answer: He did not convert the fractions into the like fraction to add.

Explanation:

Given: The distance Jonah runs on Sunday=
`(3)/(5)` miles

The distance Jonah runs on Monday=
`(7)/(10)` miles

The total distance he ran =
`(3)/(5)+(7)/(10)\ miles`

Since both the fractions are not like , thus multiply 2 to the numerator and the denominator of the first fraction [to add fractions first convert them into like fractions], we get

The total distance he ran =
`(3*2)/(5*2)+(7)/(10)\ miles`

`=(6)/(10)+(7)/(10)=(6+7)/(10)\\\\=(13)/(10)=1(3)/(10)\ miles`

The right answer is "The total distance he ran =
`1(3)/(10)\ miles`"