Add 20/9 and 40/63
1st number: 2 2/9, 2nd number: 40/63
20/9 + 40/63 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
20/9 = 20 × 7/9 × 7 = 140/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
40/63 = 40 × 1/63 × 1 = 40/63 - Add the two like fractions:
140/63 + 40/63 = 140 + 40/63 = 180/63 - 180/63 simplified gives 20/7
- So, 20/9 + 40/63 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+40/63 20/9+80/63 20/18+40/63 60/9+40/63 20/27+40/63 20/45+40/63 20/63+40/63