Add 28/4 and 20/63
1st number: 7 0/4, 2nd number: 20/63
28/4 + 20/63 is 461/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
28/4 = 28 × 63/4 × 63 = 1764/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Add the two like fractions:
1764/252 + 80/252 = 1764 + 80/252 = 1844/252 - 1844/252 simplified gives 461/63
- So, 28/4 + 20/63 = 461/63
In mixed form: 720/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+20/63 28/4+40/63 28/8+20/63 84/4+20/63 28/4+60/63 28/12+20/63 28/20+20/63