Subtract 15/70 from 27/36
27/36 - 15/70 is 15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
27/36 = 27 × 35/36 × 35 = 945/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
15/70 = 15 × 18/70 × 18 = 270/1260 - Subtract the two like fractions:
945/1260 - 270/1260 = 945 - 270/1260 = 675/1260 - After reducing the fraction, the answer is 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/36-15/70 27/36-30/70 27/72-15/70 81/36-15/70 27/36-45/70 27/36-75/70