Add 6/56 and 81/42
1st number: 6/56, 2nd number: 1 39/42
6/56 + 81/42 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
6/56 = 6 × 3/56 × 3 = 18/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
81/42 = 81 × 4/42 × 4 = 324/168 - Add the two like fractions:
18/168 + 324/168 = 18 + 324/168 = 342/168 - 342/168 simplified gives 57/28
- So, 6/56 + 81/42 = 57/28
In mixed form: 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/56+81/42 6/56+81/84 18/56+81/42 30/56+81/42 42/56+81/42