Add 5/42 and 1/81
5/42 + 1/81 is 149/1134.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
5/42 = 5 × 27/42 × 27 = 135/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
1/81 = 1 × 14/81 × 14 = 14/1134 - Add the two like fractions:
135/1134 + 14/1134 = 135 + 14/1134 = 149/1134 - So, 5/42 + 1/81 = 149/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+1/81 5/42+2/81 5/84+1/81 15/42+1/81 5/42+3/81 25/42+1/81 5/42+5/81 35/42+1/81 5/42+7/81