How to subtract fractions with unlike denominators khan academy?

Question

asked Sep 2, 2018 116k views

1 Answer

Rsz · Answer 1 · 2018-09-07T01:28:24+0000

First find the LCD of the denominators then convert the fractions. Then you can subtract.

for example

2/7 - 1/4

LCD of 4 and 7 is 28 so we convert to fractions with denominator 28

1/4 = 1*7 / 4*7 = 7 /28

2/7 = 2*4 / 7*4 = 8/28

so 2/7 - 1/4 = 8 /28 / 7/28 = 1/28 answer

How to subtract fractions with unlike denominators khan academy?

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories

Other Questions