Add 27/15 and 63/90
1st number: 1 12/15, 2nd number: 63/90
27/15 + 63/90 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
27/15 = 27 × 6/15 × 6 = 162/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Add the two like fractions:
162/90 + 63/90 = 162 + 63/90 = 225/90 - 225/90 simplified gives 5/2
- So, 27/15 + 63/90 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+63/90 27/30+63/90 81/15+63/90 27/45+63/90 27/75+63/90