Subtract 40/63 from 15/9
1st number: 1 6/9, 2nd number: 40/63
15/9 - 40/63 is 65/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
15/9 = 15 × 7/9 × 7 = 105/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
40/63 = 40 × 1/63 × 1 = 40/63 - Subtract the two like fractions:
105/63 - 40/63 = 105 - 40/63 = 65/63 - In mixed form: 12/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9-40/63 15/9-80/63 15/18-40/63 45/9-40/63 15/27-40/63 75/9-40/63 15/45-40/63 15/63-40/63