Add 35/42 and 81/28
1st number: 35/42, 2nd number: 2 25/28
35/42 + 81/28 is 313/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
35/42 = 35 × 2/42 × 2 = 70/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Add the two like fractions:
70/84 + 243/84 = 70 + 243/84 = 313/84 - So, 35/42 + 81/28 = 313/84
In mixed form: 361/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+81/28 35/84+81/28 35/42+81/56 35/42+81/84