Subtract 75/5 from 12/28
1st number: 12/28, 2nd number: 15 0/5
12/28 - 75/5 is -102/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
12/28 = 12 × 5/28 × 5 = 60/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
75/5 = 75 × 28/5 × 28 = 2100/140 - Subtract the two like fractions:
60/140 - 2100/140 = 60 - 2100/140 = -2040/140 - After reducing the fraction, the answer is -102/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-75/5 12/56-75/5 12/28-75/10 36/28-75/5 12/84-75/5 12/28-75/15 60/28-75/5 12/28-75/25 84/28-75/5 12/28-75/35