Subtract 49/63 from 5/20
5/20 - 49/63 is -19/36.
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,
5/20 = 5 × 63/20 × 63 = 315/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
49/63 = 49 × 20/63 × 20 = 980/1260 - Subtract the two like fractions:
315/1260 - 980/1260 = 315 - 980/1260 = -665/1260 - After reducing the fraction, the answer is -19/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-49/63 5/20-98/63 5/40-49/63 15/20-49/63 5/60-49/63 25/20-49/63 35/20-49/63