Add 2/12 and 72/84
2/12 + 72/84 is 43/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
72/84 = 72 × 1/84 × 1 = 72/84 - Add the two like fractions:
14/84 + 72/84 = 14 + 72/84 = 86/84 - 86/84 simplified gives 43/42
- So, 2/12 + 72/84 = 43/42
In mixed form: 11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12+72/84 2/24+72/84 6/12+72/84 2/36+72/84 10/12+72/84 2/60+72/84 14/12+72/84 2/84+72/84