Subtract 24/7 from 30/9
1st number: 3 3/9, 2nd number: 3 3/7
30/9 - 24/7 is -2/21.
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,
30/9 = 30 × 7/9 × 7 = 210/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
24/7 = 24 × 9/7 × 9 = 216/63 - Subtract the two like fractions:
210/63 - 216/63 = 210 - 216/63 = -6/63 - After reducing the fraction, the answer is -2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-24/7 30/9-48/7 30/18-24/7 30/9-24/14 90/9-24/7 30/9-72/7 30/27-24/7 30/9-24/21 30/45-24/7 30/9-24/35 30/63-24/7 30/9-24/49