Subtract 27/20 from 35/36
1st number: 35/36, 2nd number: 1 7/20
35/36 - 27/20 is -17/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
35/36 = 35 × 5/36 × 5 = 175/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
27/20 = 27 × 9/20 × 9 = 243/180 - Subtract the two like fractions:
175/180 - 243/180 = 175 - 243/180 = -68/180 - After reducing the fraction, the answer is -17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36-27/20 35/36-54/20 35/72-27/20 35/36-27/40 35/36-81/20 35/36-27/60