Subtract 20/56 from 18/35
18/35 - 20/56 is 11/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
18/35 = 18 × 8/35 × 8 = 144/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
20/56 = 20 × 5/56 × 5 = 100/280 - Subtract the two like fractions:
144/280 - 100/280 = 144 - 100/280 = 44/280 - After reducing the fraction, the answer is 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/35-20/56 18/35-40/56 18/70-20/56 54/35-20/56 18/35-60/56 90/35-20/56