Subtract 9/5 from 12/30
1st number: 12/30, 2nd number: 1 4/5
12/30 - 9/5 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
9/5 = 9 × 6/5 × 6 = 54/30 - Subtract the two like fractions:
12/30 - 54/30 = 12 - 54/30 = -42/30 - After reducing the fraction, the answer is -7/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-9/5 12/30-18/5 12/60-9/5 12/30-9/10 36/30-9/5 12/30-27/5 12/90-9/5 12/30-9/15 60/30-9/5 12/30-45/5 12/30-9/25 84/30-9/5 12/30-63/5 12/30-9/35