Subtract 20/63 from 90/20
1st number: 4 10/20, 2nd number: 20/63
90/20 - 20/63 is 527/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
90/20 = 90 × 63/20 × 63 = 5670/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
20/63 = 20 × 20/63 × 20 = 400/1260 - Subtract the two like fractions:
5670/1260 - 400/1260 = 5670 - 400/1260 = 5270/1260 - After reducing the fraction, the answer is 527/126
- In mixed form: 423/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-40/63 90/40-20/63 90/20-60/63 90/60-20/63