Subtract 30/5 from 9/12
1st number: 9/12, 2nd number: 6 0/5
9/12 - 30/5 is -21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
30/5 = 30 × 12/5 × 12 = 360/60 - Subtract the two like fractions:
45/60 - 360/60 = 45 - 360/60 = -315/60 - After reducing the fraction, the answer is -21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12-30/5 9/12-60/5 9/24-30/5 9/12-30/10 27/12-30/5 9/12-90/5 9/36-30/5 9/12-30/15 45/12-30/5 9/60-30/5 9/12-30/25 63/12-30/5 9/84-30/5 9/12-30/35