Subtract 70/63 from 50/27
1st number: 1 23/27, 2nd number: 1 7/63
50/27 - 70/63 is 20/27.
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,
50/27 = 50 × 7/27 × 7 = 350/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
70/63 = 70 × 3/63 × 3 = 210/189 - Subtract the two like fractions:
350/189 - 210/189 = 350 - 210/189 = 140/189 - After reducing the fraction, the answer is 20/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/54-70/63 50/81-70/63