Add 5/42 and 72/27
1st number: 5/42, 2nd number: 2 18/27
5/42 + 72/27 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
5/42 = 5 × 9/42 × 9 = 45/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
72/27 = 72 × 14/27 × 14 = 1008/378 - Add the two like fractions:
45/378 + 1008/378 = 45 + 1008/378 = 1053/378 - 1053/378 simplified gives 39/14
- So, 5/42 + 72/27 = 39/14
In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+72/27 5/84+72/27 5/42+72/54 15/42+72/27 5/42+72/81 25/42+72/27 35/42+72/27