Subtract 32/12 from 8/28
1st number: 8/28, 2nd number: 2 8/12
8/28 - 32/12 is -50/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
8/28 = 8 × 3/28 × 3 = 24/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
32/12 = 32 × 7/12 × 7 = 224/84 - Subtract the two like fractions:
24/84 - 224/84 = 24 - 224/84 = -200/84 - After reducing the fraction, the answer is -50/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28-32/12 8/28-64/12 8/56-32/12 8/28-32/24 24/28-32/12 8/28-96/12 8/84-32/12 8/28-32/36 40/28-32/12 8/28-32/60 56/28-32/12 8/28-32/84