Subtract 3/7 from 27/70
27/70 - 3/7 is -3/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
27/70 = 27 × 1/70 × 1 = 27/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
3/7 = 3 × 10/7 × 10 = 30/70 - Subtract the two like fractions:
27/70 - 30/70 = 27 - 30/70 = -3/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70-3/7 27/70-6/7 27/70-3/14 81/70-3/7 27/70-9/7 27/70-3/21 27/70-15/7 27/70-3/35 27/70-21/7 27/70-3/49