Add 40/7 and 28/9
1st number: 5 5/7, 2nd number: 3 1/9
40/7 + 28/9 is 556/63.
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,
40/7 = 40 × 9/7 × 9 = 360/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
28/9 = 28 × 7/9 × 7 = 196/63 - Add the two like fractions:
360/63 + 196/63 = 360 + 196/63 = 556/63 - So, 40/7 + 28/9 = 556/63
In mixed form: 852/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7+28/9 40/7+56/9 40/14+28/9 40/7+28/18 40/7+84/9 40/21+28/9 40/7+28/27 40/35+28/9 40/7+28/45 40/49+28/9 40/7+28/63