Subtract 12/80 from 28/64
28/64 - 12/80 is 23/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 80 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
28/64 = 28 × 5/64 × 5 = 140/320 - Likewise, for the 2nd fraction, since 80 × 4 = 320,
12/80 = 12 × 4/80 × 4 = 48/320 - Subtract the two like fractions:
140/320 - 48/320 = 140 - 48/320 = 92/320 - After reducing the fraction, the answer is 23/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/64-12/80 28/64-24/80 84/64-12/80 28/64-36/80 28/64-60/80 28/64-84/80