Add 63/7 and 21/63
1st number: 9 0/7, 2nd number: 21/63
63/7 + 21/63 is 28/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
63/7 = 63 × 9/7 × 9 = 567/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
21/63 = 21 × 1/63 × 1 = 21/63 - Add the two like fractions:
567/63 + 21/63 = 567 + 21/63 = 588/63 - 588/63 simplified gives 28/3
- So, 63/7 + 21/63 = 28/3
In mixed form: 91/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/7+42/63 63/14+21/63 63/21+21/63 63/35+21/63 63/49+21/63