Subtract 18/50 from 7/63
7/63 - 18/50 is -56/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 50 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 63 × 50 = 3150,
7/63 = 7 × 50/63 × 50 = 350/3150 - Likewise, for the 2nd fraction, since 50 × 63 = 3150,
18/50 = 18 × 63/50 × 63 = 1134/3150 - Subtract the two like fractions:
350/3150 - 1134/3150 = 350 - 1134/3150 = -784/3150 - After reducing the fraction, the answer is -56/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63-18/50 7/63-36/50 21/63-18/50 7/63-54/50 35/63-18/50 7/63-90/50 49/63-18/50