Subtract 3/63 from 45/7
1st number: 6 3/7, 2nd number: 3/63
45/7 - 3/63 is 134/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
45/7 = 45 × 9/7 × 9 = 405/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
3/63 = 3 × 1/63 × 1 = 3/63 - Subtract the two like fractions:
405/63 - 3/63 = 405 - 3/63 = 402/63 - After reducing the fraction, the answer is 134/21
- In mixed form: 68/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7-3/63 45/7-6/63 45/14-3/63 45/7-9/63 45/21-3/63 45/7-15/63 45/35-3/63 45/7-21/63 45/49-3/63