Subtract 27/45 from 2/4
2/4 - 27/45 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
2/4 = 2 × 45/4 × 45 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
27/45 = 27 × 4/45 × 4 = 108/180 - Subtract the two like fractions:
90/180 - 108/180 = 90 - 108/180 = -18/180 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-54/45 2/8-27/45 2/4-27/90 6/4-27/45 2/4-81/45 2/12-27/45 10/4-27/45 2/20-27/45 14/4-27/45 2/28-27/45