Add 90/12 and 56/90
1st number: 7 6/12, 2nd number: 56/90
90/12 + 56/90 is 731/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
90/12 = 90 × 15/12 × 15 = 1350/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
56/90 = 56 × 2/90 × 2 = 112/180 - Add the two like fractions:
1350/180 + 112/180 = 1350 + 112/180 = 1462/180 - 1462/180 simplified gives 731/90
- So, 90/12 + 56/90 = 731/90
In mixed form: 811/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24+56/90 90/36+56/90 90/60+56/90 90/84+56/90