Add 20/12 and 81/4
1st number: 1 8/12, 2nd number: 20 1/4
20/12 + 81/4 is 263/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
20/12 = 20 × 1/12 × 1 = 20/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
81/4 = 81 × 3/4 × 3 = 243/12 - Add the two like fractions:
20/12 + 243/12 = 20 + 243/12 = 263/12 - So, 20/12 + 81/4 = 263/12
In mixed form: 2111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+81/4 20/24+81/4 20/12+81/8 60/12+81/4 20/36+81/4 20/12+81/12 20/60+81/4 20/12+81/20 20/84+81/4 20/12+81/28