Subtract 1/45 from 6/12
6/12 - 1/45 is 43/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
6/12 = 6 × 15/12 × 15 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Subtract the two like fractions:
90/180 - 4/180 = 90 - 4/180 = 86/180 - After reducing the fraction, the answer is 43/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-2/45 6/24-1/45 6/12-1/90 18/12-1/45 6/12-3/45 6/36-1/45 30/12-1/45 6/12-5/45 6/60-1/45 42/12-1/45 6/12-7/45 6/84-1/45