Liam has 8 3/4 gallons of paint. he wants to use 2/5 of paint to paint his livingroom. how many gallons of paint will liam use?

Liam will use 3.5 gallons of paint to paint his living room

Solution:

Given that Liam has gallons of paint.

He uses of paint to paint his living room

We need to find how many gallons of paint will Liam use

The gallons of paint Liam used can be found as follows:

Amount of paint Liam has = gallons  

Converting mixed fraction to decimal we get 8.75

Amount of paint used = 2/5th of available amount  

Hence Liam will use 3.5 gallons of paint to paint his living room

so, converting firstly the mixed fractions to improper fractions and then "adding".