Add 25/15 and 63/90
1st number: 1 10/15, 2nd number: 63/90
25/15 + 63/90 is 71/30.
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,
25/15 = 25 × 6/15 × 6 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Add the two like fractions:
150/90 + 63/90 = 150 + 63/90 = 213/90 - 213/90 simplified gives 71/30
- So, 25/15 + 63/90 = 71/30
In mixed form: 211/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+63/90 25/30+63/90 75/15+63/90 25/45+63/90 25/75+63/90