Add 4/40 and 4/12
4/40 + 4/12 is 13/30.
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,
4/40 = 4 × 3/40 × 3 = 12/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
4/12 = 4 × 10/12 × 10 = 40/120 - Add the two like fractions:
12/120 + 40/120 = 12 + 40/120 = 52/120 - 52/120 simplified gives 13/30
- So, 4/40 + 4/12 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/40+4/12 4/40+8/12 4/80+4/12 4/40+4/24 12/40+4/12 4/40+4/36 20/40+4/12 4/40+20/12 4/40+4/60 28/40+4/12 4/40+28/12 4/40+4/84