Subtract 27/70 from 3/8
3/8 - 27/70 is -3/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
3/8 = 3 × 35/8 × 35 = 105/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
27/70 = 27 × 4/70 × 4 = 108/280 - Subtract the two like fractions:
105/280 - 108/280 = 105 - 108/280 = -3/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8-27/70 3/8-54/70 3/16-27/70 9/8-27/70 3/8-81/70 3/24-27/70 15/8-27/70 3/40-27/70 21/8-27/70 3/56-27/70