Add 15/12 and 90/49, Solve 1 3/12 + 1 41/49 as a fraction

Add 15/12 and 90/49

1^st number: 1 3/12, 2^nd number: 1 41/49

15/12 + 90/49 is 605/196.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
15/12 = 15 × 49/12 × 49 = 735/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
90/49 = 90 × 12/49 × 12 = 1080/588
Add the two like fractions:
735/588 + 1080/588 = 735 + 1080/588 = 1815/588
1815/588 simplified gives 605/196
So, 15/12 + 90/49 = 605/196
In mixed form: 317/196

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad