Subtract 9/7 from 24/45
1st number: 24/45, 2nd number: 1 2/7
24/45 - 9/7 is -79/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
24/45 = 24 × 7/45 × 7 = 168/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
9/7 = 9 × 45/7 × 45 = 405/315 - Subtract the two like fractions:
168/315 - 405/315 = 168 - 405/315 = -237/315 - After reducing the fraction, the answer is -79/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/45-9/7 24/45-18/7 24/90-9/7 24/45-9/14 72/45-9/7 24/45-27/7 24/45-9/21 24/45-45/7 24/45-9/35 24/45-63/7 24/45-9/49