Question

What is 4 over 5 -2 over 5 +3 over 4 + 3 over 4 simplifyed

Answer 1

`(19)/(10)` or
`1.9`

Explanation:

we have

`(4)/(5)-(2)/(5)+(3)/(4) +(3)/(4)`

Combine fractions with the same denominator

`(4-2)/(5)+(3+3)/(4)\\\\(2)/(5)+(6)/(4)`

In order to add or subtract fractions, they must have the same denominator. Determine the least common denominator (LCD)

LCD=(5)(4)=20

Multiply the first fraction by 4/4 and the second fraction by 5/5 in order to obtain the same denominator in both fractions

so

`((4)/(4))(2)/(5)+((5)/(5))(6)/(4)`

`(8)/(20)+(30)/(20)`

`(8+30)/(20)`

`(38)/(20)`

Simplify

`(19)/(10)`