Question

Last winter Armand had 5/6 of a row of stacked logs. At the end of the winter he had 8/15 of the same row left how much wood did he burn over the winter

Answer 1

`(3)/(10)`

Explanation:

First we have to make the fractions even so there denominator have to be equal. So 15 times 2 gets 30 and 6 times 5 gets 30 too. Now multiply the numerator by the corresponding number of 25/30 and 16/30. Subtract to get 9/30 now simplify to get 3/10.

Answer 2

Armand burnt
`(3)/(10)` of wood over the winter.

Explanation:

We know that Armand had in first place
`(5)/(6)`.

Then, at the end of the winter, he had
`(8)/(15)`.

To know how much wood he burnt, we just have to find the difference between these two quantities

`(5)/(6)-(8)/(15)=(75-48)/(90)=(27)/(90)=(3)/(10)`

Therefore, Armand burnt
`(3)/(10)` of wood over the winter.