Add 81/42 and 14/56
1st number: 1 39/42, 2nd number: 14/56
81/42 + 14/56 is 61/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
81/42 = 81 × 4/42 × 4 = 324/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
14/56 = 14 × 3/56 × 3 = 42/168 - Add the two like fractions:
324/168 + 42/168 = 324 + 42/168 = 366/168 - 366/168 simplified gives 61/28
- So, 81/42 + 14/56 = 61/28
In mixed form: 25/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+28/56 81/84+14/56 81/42+42/56 81/42+70/56 81/42+98/56