Subtract 45/63 from 54/20
1st number: 2 14/20, 2nd number: 45/63
54/20 - 45/63 is 139/70.
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,
54/20 = 54 × 63/20 × 63 = 3402/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Subtract the two like fractions:
3402/1260 - 900/1260 = 3402 - 900/1260 = 2502/1260 - After reducing the fraction, the answer is 139/70
- In mixed form: 169/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-90/63 54/40-45/63 54/60-45/63