Add 63/15 and 18/90
1st number: 4 3/15, 2nd number: 18/90
63/15 + 18/90 is 22/5.
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,
63/15 = 63 × 6/15 × 6 = 378/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Add the two like fractions:
378/90 + 18/90 = 378 + 18/90 = 396/90 - 396/90 simplified gives 22/5
- So, 63/15 + 18/90 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/15+36/90 63/30+18/90 63/15+54/90 63/45+18/90 63/75+18/90