Add 20/63 and 35/28
1st number: 20/63, 2nd number: 1 7/28
20/63 + 35/28 is 395/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
35/28 = 35 × 9/28 × 9 = 315/252 - Add the two like fractions:
80/252 + 315/252 = 80 + 315/252 = 395/252 - So, 20/63 + 35/28 = 395/252
In mixed form: 1143/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/63+35/28 20/63+70/28 20/63+35/56 60/63+35/28 20/63+35/84