Subtract 2/80 from 12/28
12/28 - 2/80 is 113/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
12/28 = 12 × 20/28 × 20 = 240/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
2/80 = 2 × 7/80 × 7 = 14/560 - Subtract the two like fractions:
240/560 - 14/560 = 240 - 14/560 = 226/560 - After reducing the fraction, the answer is 113/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-2/80 12/28-4/80 12/56-2/80 36/28-2/80 12/28-6/80 12/84-2/80 60/28-2/80 12/28-10/80 84/28-2/80 12/28-14/80