Add 3/12 and 80/63
1st number: 3/12, 2nd number: 1 17/63
3/12 + 80/63 is 383/252.
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,
3/12 = 3 × 21/12 × 21 = 63/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
80/63 = 80 × 4/63 × 4 = 320/252 - Add the two like fractions:
63/252 + 320/252 = 63 + 320/252 = 383/252 - So, 3/12 + 80/63 = 383/252
In mixed form: 1131/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+80/63 3/24+80/63 9/12+80/63 3/36+80/63 15/12+80/63 3/60+80/63 21/12+80/63 3/84+80/63