Subtract 40/35 from 27/10
1st number: 2 7/10, 2nd number: 1 5/35
27/10 - 40/35 is 109/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
27/10 = 27 × 7/10 × 7 = 189/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
40/35 = 40 × 2/35 × 2 = 80/70 - Subtract the two like fractions:
189/70 - 80/70 = 189 - 80/70 = 109/70 - In mixed form: 139/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-40/35 27/10-80/35 27/20-40/35 27/10-40/70 81/10-40/35 27/30-40/35 27/50-40/35 27/70-40/35