Add 25/42 and 35/54
25/42 + 35/54 is 235/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
25/42 = 25 × 9/42 × 9 = 225/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
35/54 = 35 × 7/54 × 7 = 245/378 - Add the two like fractions:
225/378 + 245/378 = 225 + 245/378 = 470/378 - 470/378 simplified gives 235/189
- So, 25/42 + 35/54 = 235/189
In mixed form: 146/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+35/54 25/42+70/54 25/84+35/54 75/42+35/54