Subtract 27/40 from 10/35
10/35 - 27/40 is -109/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
10/35 = 10 × 8/35 × 8 = 80/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
27/40 = 27 × 7/40 × 7 = 189/280 - Subtract the two like fractions:
80/280 - 189/280 = 80 - 189/280 = -109/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/35-27/40 10/35-54/40 10/70-27/40 10/35-27/80 30/35-27/40 10/35-81/40 50/35-27/40 70/35-27/40