Add 81/14 and 18/7
1st number: 5 11/14, 2nd number: 2 4/7
81/14 + 18/7 is 117/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
81/14 = 81 × 1/14 × 1 = 81/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
18/7 = 18 × 2/7 × 2 = 36/14 - Add the two like fractions:
81/14 + 36/14 = 81 + 36/14 = 117/14 - So, 81/14 + 18/7 = 117/14
In mixed form: 85/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/14+36/7 81/28+18/7 81/14+18/14 81/14+54/7 81/42+18/7 81/14+18/21 81/14+90/7 81/70+18/7 81/14+18/35 81/98+18/7 81/14+18/49