Subtract 27/15 from 45/10
1st number: 4 5/10, 2nd number: 1 12/15
45/10 - 27/15 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
45/10 = 45 × 3/10 × 3 = 135/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
27/15 = 27 × 2/15 × 2 = 54/30 - Subtract the two like fractions:
135/30 - 54/30 = 135 - 54/30 = 81/30 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-27/15 45/10-54/15 45/20-27/15 45/10-27/30 45/10-81/15 45/30-27/15 45/10-27/45 45/50-27/15 45/10-27/75 45/70-27/15