Question

How can i work out the answer in mixed number

Answer 1

`\displaystyle{ 1(11)/(20)}`

Explanation:

First, focus on the fractions. Start by finding LCM of 4 and 5 which is 20. Multiply 3/4 by 5/5 to make the denominator equivalent to LCM (20). Then Multiply 1/5 by 5/5. Thus,

`\displaystyle{3 (15)/(20) - 2(4)/(20)}`

Since the minuend (left) is higher than subtrahend (right), we can subtract normally. Therefore, 3-2 = 1 and 15-4 = 11. Hence,

`\displaystyle{3 (15)/(20) - 2(4)/(20) = 1(11)/(20)}`

Also make sure that you're not treating 1 like 1x = x here. Always add 1, do not treat like a variable term!

Answer 2

Answer: 1
`(11)/(20)`

Explanation:

First, we will subtract 2 from 3.

3 - 2 = 1

Next, we will subtract the fractions by getting common denominators.

`\displaystyle (3)/(4) -(1)/(5) =(3*5)/(4*5) -(1*4)/(5*4) =(15)/(20) -(4)/(20) =(11)/(20)`

This leaves us with an answer of 1
`(11)/(20)`.