Add 81/6 and 15/42
1st number: 13 3/6, 2nd number: 15/42
81/6 + 15/42 is 97/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Add the two like fractions:
567/42 + 15/42 = 567 + 15/42 = 582/42 - 582/42 simplified gives 97/7
- So, 81/6 + 15/42 = 97/7
In mixed form: 136/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6+30/42 81/12+15/42 81/6+15/84 81/6+45/42 81/18+15/42 81/6+75/42 81/30+15/42 81/42+15/42