Add 20/12 and 98/28
1st number: 1 8/12, 2nd number: 3 14/28
20/12 + 98/28 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 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 28 × 3 = 84,
98/28 = 98 × 3/28 × 3 = 294/84 - Add the two like fractions:
140/84 + 294/84 = 140 + 294/84 = 434/84 - 434/84 simplified gives 31/6
- So, 20/12 + 98/28 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+98/28 20/24+98/28 20/12+98/56 60/12+98/28 20/36+98/28 20/12+98/84 20/60+98/28 20/84+98/28