Add 30/63 and 80/12
1st number: 30/63, 2nd number: 6 8/12
30/63 + 80/12 is 50/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
30/63 = 30 × 4/63 × 4 = 120/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
80/12 = 80 × 21/12 × 21 = 1680/252 - Add the two like fractions:
120/252 + 1680/252 = 120 + 1680/252 = 1800/252 - 1800/252 simplified gives 50/7
- So, 30/63 + 80/12 = 50/7
In mixed form: 71/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63+80/12 30/63+80/24 90/63+80/12 30/63+80/36 30/63+80/60 30/63+80/84