Subtract 20/28 from 75/12
1st number: 6 3/12, 2nd number: 20/28
75/12 - 20/28 is 155/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Subtract the two like fractions:
525/84 - 60/84 = 525 - 60/84 = 465/84 - After reducing the fraction, the answer is 155/28
- In mixed form: 515/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/12-40/28 75/24-20/28 75/12-20/56 75/12-60/28 75/36-20/28 75/12-20/84 75/60-20/28 75/84-20/28