Add 18/7 and 6/81
1st number: 2 4/7, 2nd number: 6/81
18/7 + 6/81 is 500/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
18/7 = 18 × 81/7 × 81 = 1458/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
6/81 = 6 × 7/81 × 7 = 42/567 - Add the two like fractions:
1458/567 + 42/567 = 1458 + 42/567 = 1500/567 - 1500/567 simplified gives 500/189
- So, 18/7 + 6/81 = 500/189
In mixed form: 2122/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7+6/81 18/7+12/81 18/14+6/81 54/7+6/81 18/7+18/81 18/21+6/81 90/7+6/81 18/7+30/81 18/35+6/81 18/7+42/81 18/49+6/81