Add 28/12 and 64/63
1st number: 2 4/12, 2nd number: 1 1/63
28/12 + 64/63 is 211/63.
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,
28/12 = 28 × 21/12 × 21 = 588/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
64/63 = 64 × 4/63 × 4 = 256/252 - Add the two like fractions:
588/252 + 256/252 = 588 + 256/252 = 844/252 - 844/252 simplified gives 211/63
- So, 28/12 + 64/63 = 211/63
In mixed form: 322/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+64/63 28/24+64/63 84/12+64/63 28/36+64/63 28/60+64/63 28/84+64/63