Add 72/63 and 8/9
1st number: 1 9/63, 2nd number: 8/9
72/63 + 8/9 is 128/63.
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,
8/9 = 8 × 7/9 × 7 = 56/63 - Add the two like fractions:
72/63 + 56/63 = 72 + 56/63 = 128/63 - So, 72/63 + 8/9 = 128/63
In mixed form: 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63+16/9 72/63+8/18 72/63+24/9 72/63+8/27 72/63+40/9 72/63+8/45 72/63+56/9 72/63+8/63