Add 81/42 and 6/18
1st number: 1 39/42, 2nd number: 6/18
81/42 + 6/18 is 95/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
81/42 = 81 × 3/42 × 3 = 243/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
6/18 = 6 × 7/18 × 7 = 42/126 - Add the two like fractions:
243/126 + 42/126 = 243 + 42/126 = 285/126 - 285/126 simplified gives 95/42
- So, 81/42 + 6/18 = 95/42
In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+12/18 81/84+6/18 81/42+6/36 81/42+6/54 81/42+30/18 81/42+6/90 81/42+42/18