Subtract 15/7 from 24/9
1st number: 2 6/9, 2nd number: 2 1/7
24/9 - 15/7 is 11/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
24/9 = 24 × 7/9 × 7 = 168/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
15/7 = 15 × 9/7 × 9 = 135/63 - Subtract the two like fractions:
168/63 - 135/63 = 168 - 135/63 = 33/63 - After reducing the fraction, the answer is 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/9-15/7 24/9-30/7 24/18-15/7 24/9-15/14 72/9-15/7 24/9-45/7 24/27-15/7 24/9-15/21 24/9-75/7 24/45-15/7 24/9-15/35 24/63-15/7 24/9-15/49