Add 3/14 and 81/40
1st number: 3/14, 2nd number: 2 1/40
3/14 + 81/40 is 627/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
3/14 = 3 × 20/14 × 20 = 60/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
60/280 + 567/280 = 60 + 567/280 = 627/280 - So, 3/14 + 81/40 = 627/280
In mixed form: 267/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14+81/40 3/28+81/40 3/14+81/80 9/14+81/40 3/42+81/40 15/14+81/40 3/70+81/40 21/14+81/40 3/98+81/40