Add 63/36 and 42/15
1st number: 1 27/36, 2nd number: 2 12/15
63/36 + 42/15 is 91/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 15 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
63/36 = 63 × 5/36 × 5 = 315/180 - Likewise, for the 2nd fraction, since 15 × 12 = 180,
42/15 = 42 × 12/15 × 12 = 504/180 - Add the two like fractions:
315/180 + 504/180 = 315 + 504/180 = 819/180 - 819/180 simplified gives 91/20
- So, 63/36 + 42/15 = 91/20
In mixed form: 411/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/36+84/15 63/72+42/15 63/36+42/30 63/36+42/45 63/36+42/75