Add 25/42 and 30/27
1st number: 25/42, 2nd number: 1 3/27
25/42 + 30/27 is 215/126.
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,
25/42 = 25 × 9/42 × 9 = 225/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
30/27 = 30 × 14/27 × 14 = 420/378 - Add the two like fractions:
225/378 + 420/378 = 225 + 420/378 = 645/378 - 645/378 simplified gives 215/126
- So, 25/42 + 30/27 = 215/126
In mixed form: 189/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+30/27 25/42+60/27 25/84+30/27 25/42+30/54 75/42+30/27 25/42+90/27 25/42+30/81