Add 90/36 and 80/28
1st number: 2 18/36, 2nd number: 2 24/28
90/36 + 80/28 is 75/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
80/28 = 80 × 9/28 × 9 = 720/252 - Add the two like fractions:
630/252 + 720/252 = 630 + 720/252 = 1350/252 - 1350/252 simplified gives 75/14
- So, 90/36 + 80/28 = 75/14
In mixed form: 55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+80/28 90/36+80/56 90/36+80/84