Subtract 7/45 from 27/12
1st number: 2 3/12, 2nd number: 7/45
27/12 - 7/45 is 377/180.
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,
27/12 = 27 × 15/12 × 15 = 405/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Subtract the two like fractions:
405/180 - 28/180 = 405 - 28/180 = 377/180 - In mixed form: 217/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-7/45 27/12-14/45 27/24-7/45 27/12-7/90 81/12-7/45 27/12-21/45 27/36-7/45 27/12-35/45 27/60-7/45 27/12-49/45 27/84-7/45