Subtract 32/12 from 9/30
1st number: 9/30, 2nd number: 2 8/12
9/30 - 32/12 is -71/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
9/30 = 9 × 2/30 × 2 = 18/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
32/12 = 32 × 5/12 × 5 = 160/60 - Subtract the two like fractions:
18/60 - 160/60 = 18 - 160/60 = -142/60 - After reducing the fraction, the answer is -71/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-32/12 9/30-64/12 9/60-32/12 9/30-32/24 27/30-32/12 9/30-96/12 9/90-32/12 9/30-32/36 45/30-32/12 9/30-32/60 63/30-32/12 9/30-32/84