Add 8/42 and 2/81
8/42 + 2/81 is 122/567.
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,
8/42 = 8 × 27/42 × 27 = 216/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
2/81 = 2 × 14/81 × 14 = 28/1134 - Add the two like fractions:
216/1134 + 28/1134 = 216 + 28/1134 = 244/1134 - 244/1134 simplified gives 122/567
- So, 8/42 + 2/81 = 122/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+2/81 8/42+4/81 8/84+2/81 24/42+2/81 8/42+6/81 40/42+2/81 8/42+10/81 56/42+2/81 8/42+14/81