Add 80/12 and 1/63
1st number: 6 8/12, 2nd number: 1/63
80/12 + 1/63 is 421/63.
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,
80/12 = 80 × 21/12 × 21 = 1680/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
1/63 = 1 × 4/63 × 4 = 4/252 - Add the two like fractions:
1680/252 + 4/252 = 1680 + 4/252 = 1684/252 - 1684/252 simplified gives 421/63
- So, 80/12 + 1/63 = 421/63
In mixed form: 643/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+2/63 80/24+1/63 80/12+3/63 80/36+1/63 80/12+5/63 80/60+1/63 80/12+7/63 80/84+1/63