Add 72/42 and 25/27
1st number: 1 30/42, 2nd number: 25/27
72/42 + 25/27 is 499/189.
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,
72/42 = 72 × 9/42 × 9 = 648/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
25/27 = 25 × 14/27 × 14 = 350/378 - Add the two like fractions:
648/378 + 350/378 = 648 + 350/378 = 998/378 - 998/378 simplified gives 499/189
- So, 72/42 + 25/27 = 499/189
In mixed form: 2121/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42+50/27 72/84+25/27 72/42+25/54 72/42+75/27 72/42+25/81