Add 1/42 and 16/81
1/42 + 16/81 is 251/1134.
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,
1/42 = 1 × 27/42 × 27 = 27/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
16/81 = 16 × 14/81 × 14 = 224/1134 - Add the two like fractions:
27/1134 + 224/1134 = 27 + 224/1134 = 251/1134 - So, 1/42 + 16/81 = 251/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+16/81 1/42+32/81 1/84+16/81 3/42+16/81 1/42+48/81 5/42+16/81 1/42+80/81 7/42+16/81