Add 25/81 and 18/7
1st number: 25/81, 2nd number: 2 4/7
25/81 + 18/7 is 1633/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 7 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
25/81 = 25 × 7/81 × 7 = 175/567 - Likewise, for the 2nd fraction, since 7 × 81 = 567,
18/7 = 18 × 81/7 × 81 = 1458/567 - Add the two like fractions:
175/567 + 1458/567 = 175 + 1458/567 = 1633/567 - So, 25/81 + 18/7 = 1633/567
In mixed form: 2499/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/81+18/7 25/81+36/7 25/81+18/14 75/81+18/7 25/81+54/7 25/81+18/21 25/81+90/7 25/81+18/35 25/81+18/49