Add 18/72 and 3/63
18/72 + 3/63 is 25/84.
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,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
3/63 = 3 × 8/63 × 8 = 24/504 - Add the two like fractions:
126/504 + 24/504 = 126 + 24/504 = 150/504 - 150/504 simplified gives 25/84
- So, 18/72 + 3/63 = 25/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+3/63 18/72+6/63 54/72+3/63 18/72+9/63 90/72+3/63 18/72+15/63 18/72+21/63