Subtract 60/45 from 12/30
1st number: 12/30, 2nd number: 1 15/45
12/30 - 60/45 is -14/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
60/45 = 60 × 2/45 × 2 = 120/90 - Subtract the two like fractions:
36/90 - 120/90 = 36 - 120/90 = -84/90 - After reducing the fraction, the answer is -14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-60/45 12/60-60/45 12/30-60/90 36/30-60/45 12/90-60/45 60/30-60/45 84/30-60/45