Question

What's the next fraction in the sequence?
1/3, 7/15, 3/5, 11/15

Answer 1

13/15

Explanation:

If we give all of these fractions a common denominator, this problem will be much easier. We see that a common denominator can be 15.

We can take 1/3 and multiply both the numerator and denominator by 5, getting 5/15. 7/15 already has a denominator of 15. Now if we multiply the numerator and denominator by 3, we get 9/15. Then we have 11/15.

Now the pattern is 5/15, 7/15, 9/15, 11/15. The numerator increases by 2 each time, so the next fraction should be 13/15.