Add 18/72 and 4/63
18/72 + 4/63 is 79/252.
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,
4/63 = 4 × 8/63 × 8 = 32/504 - Add the two like fractions:
126/504 + 32/504 = 126 + 32/504 = 158/504 - 158/504 simplified gives 79/252
- So, 18/72 + 4/63 = 79/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+4/63 18/72+8/63 54/72+4/63 18/72+12/63 90/72+4/63 18/72+20/63 18/72+28/63