Subtract 24/20 from 9/7
1st number: 1 2/7, 2nd number: 1 4/20
9/7 - 24/20 is 3/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
9/7 = 9 × 20/7 × 20 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
24/20 = 24 × 7/20 × 7 = 168/140 - Subtract the two like fractions:
180/140 - 168/140 = 180 - 168/140 = 12/140 - After reducing the fraction, the answer is 3/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7-24/20 9/7-48/20 9/14-24/20 9/7-24/40 27/7-24/20 9/7-72/20 9/21-24/20 9/7-24/60 45/7-24/20 9/35-24/20 63/7-24/20 9/49-24/20