Subtract 42/60 from 28/27
1st number: 1 1/27, 2nd number: 42/60
28/27 - 42/60 is 91/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
28/27 = 28 × 20/27 × 20 = 560/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
42/60 = 42 × 9/60 × 9 = 378/540 - Subtract the two like fractions:
560/540 - 378/540 = 560 - 378/540 = 182/540 - After reducing the fraction, the answer is 91/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27-42/60 28/27-84/60 28/54-42/60 84/27-42/60 28/81-42/60