Add 60/20 and 21/63
1st number: 3 0/20, 2nd number: 21/63
60/20 + 21/63 is 10/3.
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,
60/20 = 60 × 63/20 × 63 = 3780/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Add the two like fractions:
3780/1260 + 420/1260 = 3780 + 420/1260 = 4200/1260 - 4200/1260 simplified gives 10/3
- So, 60/20 + 21/63 = 10/3
In mixed form: 31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+42/63 60/40+21/63