Question

Draw a fraction bar for the sum of 1/3 +1/4, and tell why a common denominator is needed.

Answer 1

Refer the attached figure.

Step-by-step explanation:

Given : Fraction
`(1)/(3)+(1)/(4)`

To find : Draw a fraction bar for the sum and tell why a common denominator is needed ?

Solution :

Fraction
`(1)/(3)+(1)/(4)`

We need a common denominator because if two fractions have different denominators, then we have to take an extra step before we can add or subtract them to make calculation easier.

So,
`(1)/(3)+(1)/(4)=(4+3)/(12)`

`(1)/(3)+(1)/(4)=(7)/(12)`

Now, Refer the attached figure for picture of fractions.