Add 5/7 and 4/9
5/7 + 4/9 is 73/63.
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,
5/7 = 5 × 9/7 × 9 = 45/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
4/9 = 4 × 7/9 × 7 = 28/63 - Add the two like fractions:
45/63 + 28/63 = 45 + 28/63 = 73/63 - So, 5/7 + 4/9 = 73/63
In mixed form: 110/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/7+4/9 5/7+8/9 5/14+4/9 5/7+4/18 15/7+4/9 5/7+12/9 5/21+4/9 5/7+4/27 25/7+4/9 5/7+20/9 5/35+4/9 5/7+4/45 35/7+4/9 5/7+28/9 5/49+4/9 5/7+4/63