Subtract 20/27 from 50/63
50/63 - 20/27 is 10/189.
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,
50/63 = 50 × 3/63 × 3 = 150/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
20/27 = 20 × 7/27 × 7 = 140/189 - Subtract the two like fractions:
150/189 - 140/189 = 150 - 140/189 = 10/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/63-40/27 50/63-20/54 50/63-60/27 50/63-20/81