Add 90/15 and 50/28
1st number: 6 0/15, 2nd number: 1 22/28
90/15 + 50/28 is 109/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
90/15 = 90 × 28/15 × 28 = 2520/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
50/28 = 50 × 15/28 × 15 = 750/420 - Add the two like fractions:
2520/420 + 750/420 = 2520 + 750/420 = 3270/420 - 3270/420 simplified gives 109/14
- So, 90/15 + 50/28 = 109/14
In mixed form: 711/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+50/28 90/15+50/56 90/45+50/28 90/15+50/84 90/75+50/28