Subtract 75/63 from 42/50
1st number: 42/50, 2nd number: 1 12/63
42/50 - 75/63 is -184/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 63 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 50 × 63 = 3150,
42/50 = 42 × 63/50 × 63 = 2646/3150 - Likewise, for the 2nd fraction, since 63 × 50 = 3150,
75/63 = 75 × 50/63 × 50 = 3750/3150 - Subtract the two like fractions:
2646/3150 - 3750/3150 = 2646 - 3750/3150 = -1104/3150 - After reducing the fraction, the answer is -184/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50-75/63