Subtract 12/27 from 4/63
4/63 - 12/27 is -8/21.
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,
4/63 = 4 × 3/63 × 3 = 12/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
12/27 = 12 × 7/27 × 7 = 84/189 - Subtract the two like fractions:
12/189 - 84/189 = 12 - 84/189 = -72/189 - After reducing the fraction, the answer is -8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/63-12/27 4/63-24/27 4/63-12/54 12/63-12/27 4/63-36/27 4/63-12/81 20/63-12/27 4/63-60/27 28/63-12/27 4/63-84/27