Add 10/12 and 12/63
10/12 + 12/63 is 43/42.
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,
10/12 = 10 × 21/12 × 21 = 210/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
12/63 = 12 × 4/63 × 4 = 48/252 - Add the two like fractions:
210/252 + 48/252 = 210 + 48/252 = 258/252 - 258/252 simplified gives 43/42
- So, 10/12 + 12/63 = 43/42
In mixed form: 11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12+12/63 10/12+24/63 10/24+12/63 30/12+12/63 10/12+36/63 10/36+12/63 50/12+12/63 10/12+60/63 10/60+12/63 70/12+12/63 10/12+84/63 10/84+12/63