Subtract 12/56 from 8/20
8/20 - 12/56 is 13/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
8/20 = 8 × 14/20 × 14 = 112/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
12/56 = 12 × 5/56 × 5 = 60/280 - Subtract the two like fractions:
112/280 - 60/280 = 112 - 60/280 = 52/280 - After reducing the fraction, the answer is 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-12/56 8/20-24/56 8/40-12/56 24/20-12/56 8/20-36/56 8/60-12/56 40/20-12/56 8/20-60/56 56/20-12/56 8/20-84/56