Add 5/12 and 28/63
5/12 + 28/63 is 31/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
5/12 = 5 × 21/12 × 21 = 105/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
28/63 = 28 × 4/63 × 4 = 112/252 - Add the two like fractions:
105/252 + 112/252 = 105 + 112/252 = 217/252 - 217/252 simplified gives 31/36
- So, 5/12 + 28/63 = 31/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12+28/63 5/12+56/63 5/24+28/63 15/12+28/63 5/12+84/63 5/36+28/63 25/12+28/63 5/60+28/63 35/12+28/63 5/84+28/63