Add 1/12 and 63/40
1st number: 1/12, 2nd number: 1 23/40
1/12 + 63/40 is 199/120.
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,
1/12 = 1 × 10/12 × 10 = 10/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Add the two like fractions:
10/120 + 189/120 = 10 + 189/120 = 199/120 - So, 1/12 + 63/40 = 199/120
In mixed form: 179/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+63/40 1/24+63/40 1/12+63/80 3/12+63/40 1/36+63/40 5/12+63/40 1/60+63/40 7/12+63/40 1/84+63/40