Subtract 80/27 from 25/42
1st number: 25/42, 2nd number: 2 26/27
25/42 - 80/27 is -895/378.
Steps for subtracting 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,
80/27 = 80 × 14/27 × 14 = 1120/378 - Subtract the two like fractions:
225/378 - 1120/378 = 225 - 1120/378 = -895/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-80/27 25/84-80/27 25/42-80/54 75/42-80/27 25/42-80/81