Add 72/54 and 3/63
1st number: 1 18/54, 2nd number: 3/63
72/54 + 3/63 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
72/54 = 72 × 7/54 × 7 = 504/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
3/63 = 3 × 6/63 × 6 = 18/378 - Add the two like fractions:
504/378 + 18/378 = 504 + 18/378 = 522/378 - 522/378 simplified gives 29/21
- So, 72/54 + 3/63 = 29/21
In mixed form: 18/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/54+6/63 72/54+9/63 72/54+15/63 72/54+21/63