Subtract 48/27 from 42/60
1st number: 42/60, 2nd number: 1 21/27
42/60 - 48/27 is -97/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
42/60 = 42 × 9/60 × 9 = 378/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
48/27 = 48 × 20/27 × 20 = 960/540 - Subtract the two like fractions:
378/540 - 960/540 = 378 - 960/540 = -582/540 - After reducing the fraction, the answer is -97/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60-48/27 42/60-96/27 42/60-48/54 42/60-48/81