Add 5/27 and 63/42
1st number: 5/27, 2nd number: 1 21/42
5/27 + 63/42 is 91/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
5/27 = 5 × 14/27 × 14 = 70/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378 - Add the two like fractions:
70/378 + 567/378 = 70 + 567/378 = 637/378 - 637/378 simplified gives 91/54
- So, 5/27 + 63/42 = 91/54
In mixed form: 137/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/27+63/42 5/54+63/42 5/27+63/84 15/27+63/42 5/81+63/42 25/27+63/42 35/27+63/42