Add 20/12 and 12/54
1st number: 1 8/12, 2nd number: 12/54
20/12 + 12/54 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
20/12 = 20 × 9/12 × 9 = 180/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
12/54 = 12 × 2/54 × 2 = 24/108 - Add the two like fractions:
180/108 + 24/108 = 180 + 24/108 = 204/108 - 204/108 simplified gives 17/9
- So, 20/12 + 12/54 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+12/54 20/12+24/54 20/24+12/54 60/12+12/54 20/12+36/54 20/36+12/54 20/12+60/54 20/60+12/54 20/12+84/54 20/84+12/54