Subtract 27/4 from 1/45
1st number: 1/45, 2nd number: 6 3/4
1/45 - 27/4 is -1211/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
27/4 = 27 × 45/4 × 45 = 1215/180 - Subtract the two like fractions:
4/180 - 1215/180 = 4 - 1215/180 = -1211/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-27/4 1/45-54/4 1/90-27/4 1/45-27/8 3/45-27/4 1/45-81/4 1/45-27/12 5/45-27/4 1/45-27/20 7/45-27/4 1/45-27/28