Add 14/12 and 15/42
1st number: 1 2/12, 2nd number: 15/42
14/12 + 15/42 is 32/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
14/12 = 14 × 7/12 × 7 = 98/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Add the two like fractions:
98/84 + 30/84 = 98 + 30/84 = 128/84 - 128/84 simplified gives 32/21
- So, 14/12 + 15/42 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/12+15/42 14/12+30/42 14/24+15/42 14/12+15/84 42/12+15/42 14/12+45/42 14/36+15/42 70/12+15/42 14/12+75/42 14/60+15/42 98/12+15/42 14/84+15/42