Add 20/12 and 1/84
1st number: 1 8/12, 2nd number: 1/84
20/12 + 1/84 is 47/28.
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,
20/12 = 20 × 7/12 × 7 = 140/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
1/84 = 1 × 1/84 × 1 = 1/84 - Add the two like fractions:
140/84 + 1/84 = 140 + 1/84 = 141/84 - 141/84 simplified gives 47/28
- So, 20/12 + 1/84 = 47/28
In mixed form: 119/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+1/84 20/12+2/84 20/24+1/84 60/12+1/84 20/12+3/84 20/36+1/84 20/12+5/84 20/60+1/84 20/12+7/84 20/84+1/84