18.3k views
3 votes
What is the difference between 2/4 and 4/9

User Alwyn
by
3.0k points

2 Answers

5 votes

Answer:

Explanation:

Here's how to subtract 4/9 from 2/4:


(2)/(4) -(4)/(9)

Step 1:

We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 2 by 9, and get 18.

Then we multiply 4 by 4, and get 16.

Next we give both terms new denominators -- 4 × 9 = 36.

So now our fractions look like this:


(18)/(36) -(16)/(36)

Step 2

Since our denominators match, we can subtract the numerators.

18 − 16 = 2

So the answer is:


(2)/(36)

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:


(2)/(36)÷2=
(1)/(8)

Let's try dividing by 2 again...

No good. 2 is larger than 1. So we're done reducing.

There you have it! The final answer is:


(1)/(8)

I hope this helps :)

User Valeska
by
3.0k points
3 votes
The different between 2/4 and 4/9 is 2/36. i got my answer by changing the two fractions so that they have common denominators. i did this by checking if they have common multiples and they did. the common multiple is 36. so first, i turned 2/4 into 18/36 by multiplying 2 by 9 and multiplying 4 by 9. then, i did the same for 4/9. hope this helped!
User JackMorrissey
by
3.5k points