Add 81/42 and 6/16
1st number: 1 39/42, 2nd number: 6/16
81/42 + 6/16 is 129/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
81/42 = 81 × 8/42 × 8 = 648/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
6/16 = 6 × 21/16 × 21 = 126/336 - Add the two like fractions:
648/336 + 126/336 = 648 + 126/336 = 774/336 - 774/336 simplified gives 129/56
- So, 81/42 + 6/16 = 129/56
In mixed form: 217/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+12/16 81/84+6/16 81/42+6/32 81/42+18/16 81/42+6/48 81/42+30/16 81/42+6/80 81/42+42/16