Add 90/9 and 27/12
1st number: 10 0/9, 2nd number: 2 3/12
90/9 + 27/12 is 49/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
90/9 = 90 × 4/9 × 4 = 360/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
27/12 = 27 × 3/12 × 3 = 81/36 - Add the two like fractions:
360/36 + 81/36 = 360 + 81/36 = 441/36 - 441/36 simplified gives 49/4
- So, 90/9 + 27/12 = 49/4
In mixed form: 121/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+54/12 90/18+27/12 90/9+27/24 90/9+81/12 90/27+27/12 90/9+27/36 90/45+27/12 90/9+27/60 90/63+27/12 90/9+27/84