Subtract 48/27 from 28/72
1st number: 28/72, 2nd number: 1 21/27
28/72 - 48/27 is -25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
28/72 = 28 × 3/72 × 3 = 84/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
48/27 = 48 × 8/27 × 8 = 384/216 - Subtract the two like fractions:
84/216 - 384/216 = 84 - 384/216 = -300/216 - After reducing the fraction, the answer is -25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72-48/27 28/72-96/27 28/72-48/54 84/72-48/27 28/72-48/81