Add 30/72 and 7/63
30/72 + 7/63 is 19/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
7/63 = 7 × 8/63 × 8 = 56/504 - Add the two like fractions:
210/504 + 56/504 = 210 + 56/504 = 266/504 - 266/504 simplified gives 19/36
- So, 30/72 + 7/63 = 19/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+7/63 30/72+14/63 90/72+7/63 30/72+21/63 30/72+35/63 30/72+49/63