Question

What's the sum of 2⁄5 and 2⁄4?

Answer 1

For finding the sum of
`(2)/(5) and (2)/(4)`
You need to have the same denominator in order to add
The least common multiple of 4 and 5 is 20

`(2)/(5)` multiplied by 4 on the numerator and the denominator

`(2)/(4)` multiplied by 5 on the numerator and the denominator
Giving us:

`(8)/(20)` +
`(10)/(20)`
=
`(18)/(20)`
It can further be simplified into:

`(9)/(10)`

Answer 2

convert to /20 first

2/5=8/20
2/4=10/20

sum is 8/20+10/20=18/20 = 9/10