Subtract 5/20 from 45/63
45/63 - 5/20 is 13/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
5/20 = 5 × 63/20 × 63 = 315/1260 - Subtract the two like fractions:
900/1260 - 315/1260 = 900 - 315/1260 = 585/1260 - After reducing the fraction, the answer is 13/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63-5/20 45/63-10/20 45/63-5/40 45/63-15/20 45/63-5/60 45/63-25/20 45/63-35/20