Add 56/42 and 63/81
1st number: 1 14/42, 2nd number: 63/81
56/42 + 63/81 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
56/42 = 56 × 27/42 × 27 = 1512/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
63/81 = 63 × 14/81 × 14 = 882/1134 - Add the two like fractions:
1512/1134 + 882/1134 = 1512 + 882/1134 = 2394/1134 - 2394/1134 simplified gives 19/9
- So, 56/42 + 63/81 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84+63/81