Question

Solve 4 1/4 - 2 11/20

Answer 1

This could be solved as a group of mixed numbers, but I like to work with improper fractions more.
17/4 - 51/20
Next, you need to find a common denominator.
85/20 -51/20
When adding and subtracting fractions, you only work in the numerator, and the denominator stays the same.
34/20
Then, you just simplify.
Improper fraction: 17/10
Mixed number: 1 7/10
Decimal: 1.7

Answer 2

`4(1)/(4) - 2(11)/(20)`
Change them into improper fractions by multiplying the denominator(bottom) by the whole number then adding the numerator

`(17)/(4)` -
`(51)/(20)`
You must have a common denominator
Multiply
`(17)/(4)` by
`(5)/(5)`⇒
`(85)/(20)`

`(85)/(20)`-
`(51)/(20)`=
`(34)/(20)`
Simplify by dividing the numerator by the denominator
34÷20=
`1(14)/(20)`⇒
`1 (7)/(10)` reduced
You answer is
`1 (7)/(10)`