Add 14/40 and 81/15
1st number: 14/40, 2nd number: 5 6/15
14/40 + 81/15 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
14/40 = 14 × 3/40 × 3 = 42/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
81/15 = 81 × 8/15 × 8 = 648/120 - Add the two like fractions:
42/120 + 648/120 = 42 + 648/120 = 690/120 - 690/120 simplified gives 23/4
- So, 14/40 + 81/15 = 23/4
In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/40+81/15 14/80+81/15 14/40+81/30 42/40+81/15 14/40+81/45 70/40+81/15 14/40+81/75 98/40+81/15