Add 98/20 and 28/63
1st number: 4 18/20, 2nd number: 28/63
98/20 + 28/63 is 481/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
98/20 = 98 × 63/20 × 63 = 6174/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
28/63 = 28 × 20/63 × 20 = 560/1260 - Add the two like fractions:
6174/1260 + 560/1260 = 6174 + 560/1260 = 6734/1260 - 6734/1260 simplified gives 481/90
- So, 98/20 + 28/63 = 481/90
In mixed form: 531/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20+56/63 98/40+28/63 98/20+84/63 98/60+28/63