Subtract 27/70 from 3/4
3/4 - 27/70 is 51/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
3/4 = 3 × 35/4 × 35 = 105/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
27/70 = 27 × 2/70 × 2 = 54/140 - Subtract the two like fractions:
105/140 - 54/140 = 105 - 54/140 = 51/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4-27/70 3/4-54/70 3/8-27/70 9/4-27/70 3/4-81/70 3/12-27/70 15/4-27/70 3/20-27/70 21/4-27/70 3/28-27/70