Subtract 21/63 from 49/20
1st number: 2 9/20, 2nd number: 21/63
49/20 - 21/63 is 127/60.
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,
49/20 = 49 × 63/20 × 63 = 3087/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Subtract the two like fractions:
3087/1260 - 420/1260 = 3087 - 420/1260 = 2667/1260 - After reducing the fraction, the answer is 127/60
- In mixed form: 27/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-21/63 49/20-42/63 49/40-21/63 49/60-21/63