Subtract 12/63 from 15/27
15/27 - 12/63 is 23/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
15/27 = 15 × 7/27 × 7 = 105/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
12/63 = 12 × 3/63 × 3 = 36/189 - Subtract the two like fractions:
105/189 - 36/189 = 105 - 36/189 = 69/189 - After reducing the fraction, the answer is 23/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27-12/63 15/27-24/63 15/54-12/63 45/27-12/63 15/27-36/63 15/81-12/63 75/27-12/63 15/27-60/63 15/27-84/63