Add 20/14 and 81/40
1st number: 1 6/14, 2nd number: 2 1/40
20/14 + 81/40 is 967/280.
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,
20/14 = 20 × 20/14 × 20 = 400/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
400/280 + 567/280 = 400 + 567/280 = 967/280 - So, 20/14 + 81/40 = 967/280
In mixed form: 3127/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14+81/40 20/28+81/40 20/14+81/80 60/14+81/40 20/42+81/40 20/70+81/40 20/98+81/40