Subtract 18/4 from 27/63
1st number: 27/63, 2nd number: 4 2/4
27/63 - 18/4 is -57/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
27/63 = 27 × 4/63 × 4 = 108/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
18/4 = 18 × 63/4 × 63 = 1134/252 - Subtract the two like fractions:
108/252 - 1134/252 = 108 - 1134/252 = -1026/252 - After reducing the fraction, the answer is -57/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63-18/4 27/63-36/4 27/63-18/8 81/63-18/4 27/63-54/4 27/63-18/12 27/63-90/4 27/63-18/20 27/63-18/28