Question

Add and subtract3/2 + 2/3 =4/15 + 51/30=5/4 - 41/40 =10/7 - 149/140=

Answer 1

10/7 - 149/140 =​

First, find the least common denominator (bottom numbers)

7 and 140 =

LCM = 140

Multiply the top and bottom number od the first fraction by 20

`((10)/(7)*(20)/(20))-(149)/(140)`
`(200)/(140)-(149)/(140)`

Now that both fractions have the same denominator (140) simply subtract the top numbers

`((200-149))/(140)`
`(51)/(140)`