Subtract 6/80 from 15/28
15/28 - 6/80 is 129/280.
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,
15/28 = 15 × 20/28 × 20 = 300/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
6/80 = 6 × 7/80 × 7 = 42/560 - Subtract the two like fractions:
300/560 - 42/560 = 300 - 42/560 = 258/560 - After reducing the fraction, the answer is 129/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28-6/80 15/28-12/80 15/56-6/80 45/28-6/80 15/28-18/80 15/84-6/80 75/28-6/80 15/28-30/80 15/28-42/80