Subtract 42/50 from 36/63
36/63 - 42/50 is -47/175.
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,
36/63 = 36 × 50/63 × 50 = 1800/3150 - Likewise, for the 2nd fraction, since 50 × 63 = 3150,
42/50 = 42 × 63/50 × 63 = 2646/3150 - Subtract the two like fractions:
1800/3150 - 2646/3150 = 1800 - 2646/3150 = -846/3150 - After reducing the fraction, the answer is -47/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63-42/50 36/63-84/50