Add 8/12 and 63/40
1st number: 8/12, 2nd number: 1 23/40
8/12 + 63/40 is 269/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
8/12 = 8 × 10/12 × 10 = 80/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Add the two like fractions:
80/120 + 189/120 = 80 + 189/120 = 269/120 - So, 8/12 + 63/40 = 269/120
In mixed form: 229/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12+63/40 8/24+63/40 8/12+63/80 24/12+63/40 8/36+63/40 40/12+63/40 8/60+63/40 56/12+63/40 8/84+63/40