Add 28/20 and 98/12
1st number: 1 8/20, 2nd number: 8 2/12
28/20 + 98/12 is 287/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
28/20 = 28 × 3/20 × 3 = 84/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
98/12 = 98 × 5/12 × 5 = 490/60 - Add the two like fractions:
84/60 + 490/60 = 84 + 490/60 = 574/60 - 574/60 simplified gives 287/30
- So, 28/20 + 98/12 = 287/30
In mixed form: 917/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+98/12 28/40+98/12 28/20+98/24 84/20+98/12 28/60+98/12 28/20+98/36 28/20+98/60 28/20+98/84