Subtract 48/27 from 27/30
1st number: 27/30, 2nd number: 1 21/27
27/30 - 48/27 is -79/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
27/30 = 27 × 9/30 × 9 = 243/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
48/27 = 48 × 10/27 × 10 = 480/270 - Subtract the two like fractions:
243/270 - 480/270 = 243 - 480/270 = -237/270 - After reducing the fraction, the answer is -79/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-48/27 27/30-96/27 27/60-48/27 27/30-48/54 81/30-48/27 27/90-48/27 27/30-48/81