Subtract 24/9 from 30/20
1st number: 1 10/20, 2nd number: 2 6/9
30/20 - 24/9 is -7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
30/20 = 30 × 9/20 × 9 = 270/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
24/9 = 24 × 20/9 × 20 = 480/180 - Subtract the two like fractions:
270/180 - 480/180 = 270 - 480/180 = -210/180 - After reducing the fraction, the answer is -7/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-24/9 30/20-48/9 30/40-24/9 30/20-24/18 90/20-24/9 30/20-72/9 30/60-24/9 30/20-24/27 30/20-24/45 30/20-24/63