Add 63/12 and 80/63
1st number: 5 3/12, 2nd number: 1 17/63
63/12 + 80/63 is 1643/252.
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,
63/12 = 63 × 21/12 × 21 = 1323/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
80/63 = 80 × 4/63 × 4 = 320/252 - Add the two like fractions:
1323/252 + 320/252 = 1323 + 320/252 = 1643/252 - So, 63/12 + 80/63 = 1643/252
In mixed form: 6131/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/24+80/63 63/36+80/63 63/60+80/63 63/84+80/63