Add 72/63 and 70/72
1st number: 1 9/63, 2nd number: 70/72
72/63 + 70/72 is 533/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
72/63 = 72 × 8/63 × 8 = 576/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Add the two like fractions:
576/504 + 490/504 = 576 + 490/504 = 1066/504 - 1066/504 simplified gives 533/252
- So, 72/63 + 70/72 = 533/252
In mixed form: 229/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: