Add 1/12 and 9/42
1/12 + 9/42 is 25/84.
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,
1/12 = 1 × 7/12 × 7 = 7/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Add the two like fractions:
7/84 + 18/84 = 7 + 18/84 = 25/84 - So, 1/12 + 9/42 = 25/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+9/42 1/12+18/42 1/24+9/42 1/12+9/84 3/12+9/42 1/12+27/42 1/36+9/42 5/12+9/42 1/12+45/42 1/60+9/42 7/12+9/42 1/12+63/42 1/84+9/42