Subtract 49/63 from 21/4
1st number: 5 1/4, 2nd number: 49/63
21/4 - 49/63 is 161/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
21/4 = 21 × 63/4 × 63 = 1323/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
49/63 = 49 × 4/63 × 4 = 196/252 - Subtract the two like fractions:
1323/252 - 196/252 = 1323 - 196/252 = 1127/252 - After reducing the fraction, the answer is 161/36
- In mixed form: 417/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-49/63 21/4-98/63 21/8-49/63 63/4-49/63 21/12-49/63 21/20-49/63 21/28-49/63