Subtract 90/50 from 7/63
1st number: 7/63, 2nd number: 1 40/50
7/63 - 90/50 is -76/45.
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,
90/50 = 90 × 63/50 × 63 = 5670/3150 - Subtract the two like fractions:
350/3150 - 5670/3150 = 350 - 5670/3150 = -5320/3150 - After reducing the fraction, the answer is -76/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63-90/50 21/63-90/50 35/63-90/50 49/63-90/50