Subtract 35/12 from 45/30
1st number: 1 15/30, 2nd number: 2 11/12
45/30 - 35/12 is -17/12.
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,
45/30 = 45 × 2/30 × 2 = 90/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
35/12 = 35 × 5/12 × 5 = 175/60 - Subtract the two like fractions:
90/60 - 175/60 = 90 - 175/60 = -85/60 - After reducing the fraction, the answer is -17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-35/12 45/30-70/12 45/60-35/12 45/30-35/24 45/90-35/12 45/30-35/36 45/30-35/60 45/30-35/84