Add 3/40 and 1/12
3/40 + 1/12 is 19/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
1/12 = 1 × 10/12 × 10 = 10/120 - Add the two like fractions:
9/120 + 10/120 = 9 + 10/120 = 19/120 - So, 3/40 + 1/12 = 19/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40+1/12 3/40+2/12 3/80+1/12 3/40+1/24 9/40+1/12 3/40+3/12 3/40+1/36 15/40+1/12 3/40+5/12 3/40+1/60 21/40+1/12 3/40+7/12 3/40+1/84