Subtract 90/27 from 2/63
1st number: 2/63, 2nd number: 3 9/27
2/63 - 90/27 is -208/63.
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,
2/63 = 2 × 3/63 × 3 = 6/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Subtract the two like fractions:
6/189 - 630/189 = 6 - 630/189 = -624/189 - After reducing the fraction, the answer is -208/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/63-90/27 2/63-90/54 6/63-90/27 2/63-90/81 10/63-90/27 14/63-90/27