Add 9/40 and 4/12
9/40 + 4/12 is 67/120.
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,
9/40 = 9 × 3/40 × 3 = 27/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
4/12 = 4 × 10/12 × 10 = 40/120 - Add the two like fractions:
27/120 + 40/120 = 27 + 40/120 = 67/120 - So, 9/40 + 4/12 = 67/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+4/12 9/40+8/12 9/80+4/12 9/40+4/24 27/40+4/12 9/40+4/36 45/40+4/12 9/40+20/12 9/40+4/60 63/40+4/12 9/40+28/12 9/40+4/84