Add 8/7 and 63/9
1st number: 1 1/7, 2nd number: 7 0/9
8/7 + 63/9 is 57/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
8/7 = 8 × 9/7 × 9 = 72/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
63/9 = 63 × 7/9 × 7 = 441/63 - Add the two like fractions:
72/63 + 441/63 = 72 + 441/63 = 513/63 - 513/63 simplified gives 57/7
- So, 8/7 + 63/9 = 57/7
In mixed form: 81/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7+63/9 8/14+63/9 8/7+63/18 24/7+63/9 8/21+63/9 8/7+63/27 40/7+63/9 8/35+63/9 8/7+63/45 56/7+63/9 8/49+63/9