Add 81/9 and 42/14
1st number: 9 0/9, 2nd number: 3 0/14
81/9 + 42/14 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
81/9 = 81 × 14/9 × 14 = 1134/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126 - Add the two like fractions:
1134/126 + 378/126 = 1134 + 378/126 = 1512/126 - 1512/126 simplified gives 12/1
- So, 81/9 + 42/14 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/9+84/14 81/18+42/14 81/9+42/28 81/27+42/14 81/45+42/14 81/9+42/70 81/63+42/14 81/9+42/98