Subtract 12/45 from 3/6
3/6 - 12/45 is 7/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
3/6 = 3 × 15/6 × 15 = 45/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Subtract the two like fractions:
45/90 - 24/90 = 45 - 24/90 = 21/90 - After reducing the fraction, the answer is 7/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-24/45 3/12-12/45 3/6-12/90 9/6-12/45 3/6-36/45 3/18-12/45 15/6-12/45 3/6-60/45 3/30-12/45 21/6-12/45 3/6-84/45 3/42-12/45