Subtract 1/70 from 27/40
27/40 - 1/70 is 37/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
27/40 = 27 × 7/40 × 7 = 189/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
1/70 = 1 × 4/70 × 4 = 4/280 - Subtract the two like fractions:
189/280 - 4/280 = 189 - 4/280 = 185/280 - After reducing the fraction, the answer is 37/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-1/70 27/40-2/70 27/80-1/70 81/40-1/70 27/40-3/70 27/40-5/70 27/40-7/70