Add 40/3 and 56/63
1st number: 13 1/3, 2nd number: 56/63
40/3 + 56/63 is 128/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 3 × 21 = 63,
40/3 = 40 × 21/3 × 21 = 840/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
56/63 = 56 × 1/63 × 1 = 56/63 - Add the two like fractions:
840/63 + 56/63 = 840 + 56/63 = 896/63 - 896/63 simplified gives 128/9
- So, 40/3 + 56/63 = 128/9
In mixed form: 142/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+56/63 40/6+56/63 40/9+56/63 40/15+56/63 40/21+56/63