Add 20/12 and 49/84
1st number: 1 8/12, 2nd number: 49/84
20/12 + 49/84 is 9/4.
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,
49/84 = 49 × 1/84 × 1 = 49/84 - Add the two like fractions:
140/84 + 49/84 = 140 + 49/84 = 189/84 - 189/84 simplified gives 9/4
- So, 20/12 + 49/84 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+49/84 20/12+98/84 20/24+49/84 60/12+49/84 20/36+49/84 20/60+49/84 20/84+49/84