Add 72/63 and 24/9
1st number: 1 9/63, 2nd number: 2 6/9
72/63 + 24/9 is 80/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
72/63 = 72 × 1/63 × 1 = 72/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
24/9 = 24 × 7/9 × 7 = 168/63 - Add the two like fractions:
72/63 + 168/63 = 72 + 168/63 = 240/63 - 240/63 simplified gives 80/21
- So, 72/63 + 24/9 = 80/21
In mixed form: 317/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63+48/9 72/63+24/18 72/63+72/9 72/63+24/27 72/63+24/45 72/63+24/63