Subtract 18/63 from 63/27
1st number: 2 9/27, 2nd number: 18/63
63/27 - 18/63 is 43/21.
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,
63/27 = 63 × 7/27 × 7 = 441/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
18/63 = 18 × 3/63 × 3 = 54/189 - Subtract the two like fractions:
441/189 - 54/189 = 441 - 54/189 = 387/189 - After reducing the fraction, the answer is 43/21
- In mixed form: 21/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/27-36/63 63/54-18/63 63/27-54/63 63/81-18/63 63/27-90/63