Add 63/15 and 42/90
1st number: 4 3/15, 2nd number: 42/90
63/15 + 42/90 is 14/3.
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,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
378/90 + 42/90 = 378 + 42/90 = 420/90 - 420/90 simplified gives 14/3
- So, 63/15 + 42/90 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/15+84/90 63/30+42/90 63/45+42/90 63/75+42/90