Add 81/42 and 35/24
1st number: 1 39/42, 2nd number: 1 11/24
81/42 + 35/24 is 569/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 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 24 × 7 = 168,
35/24 = 35 × 7/24 × 7 = 245/168 - Add the two like fractions:
324/168 + 245/168 = 324 + 245/168 = 569/168 - So, 81/42 + 35/24 = 569/168
In mixed form: 365/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+70/24 81/84+35/24 81/42+35/48 81/42+35/72