Add 30/63 and 3/9
30/63 + 3/9 is 17/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
30/63 = 30 × 1/63 × 1 = 30/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
3/9 = 3 × 7/9 × 7 = 21/63 - Add the two like fractions:
30/63 + 21/63 = 30 + 21/63 = 51/63 - 51/63 simplified gives 17/21
- So, 30/63 + 3/9 = 17/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63+3/9 30/63+6/9 30/63+3/18 90/63+3/9 30/63+3/27 30/63+15/9 30/63+3/45 30/63+21/9 30/63+3/63