Subtract 3/27 from 28/63
28/63 - 3/27 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
28/63 = 28 × 3/63 × 3 = 84/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
3/27 = 3 × 7/27 × 7 = 21/189 - Subtract the two like fractions:
84/189 - 21/189 = 84 - 21/189 = 63/189 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63-3/27 28/63-6/27 28/63-3/54 84/63-3/27 28/63-9/27 28/63-3/81 28/63-15/27 28/63-21/27