Question

How do I do this? Can somebody answer and explain?

Answer 1

A) multiple the 3 x 4 and add 1.
3 x 4 = 12 + 1 = 13
13/3

B) (7 x 3) + 2 = 23/3

C) (4 x 2) + 1 = 9/2

D) (2 x 8) + 7 = 23/8

Answer 2

How to make Mixed fractions into Improper Fractions?

Easy!

What you do is, you multiply the denominator with the whole number, then add the result of multiplying the denominator with the whole number to the numerator, and then, when you have that result, you put that result as your new numerator, and the denominator remains same from the Mixed fraction.

Look at picture

Answers to your questions:

1)
`3\frac{1}4}`

`= 4*3=12\\=12+1=13\\\\=(13)/(4)`

2)
`7(2)/(3)`

`=3*7=21\\=21+2=23\\\\=(23)/(3)`

3)
`4(1)/(2)`

`=2*4=8\\=8+1=9\\\\=(9)/(2)`

4)
`2(7)/(8)`

`=8*2=16\\=16+7=23\\\\=(23)/(8)`

Here are your answers!

Have a great day!

:D