Subtract 30/70 from 27/56
27/56 - 30/70 is 3/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
27/56 = 27 × 5/56 × 5 = 135/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
30/70 = 30 × 4/70 × 4 = 120/280 - Subtract the two like fractions:
135/280 - 120/280 = 135 - 120/280 = 15/280 - After reducing the fraction, the answer is 3/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-30/70 27/56-60/70 81/56-30/70 27/56-90/70