Subtract 15/56 from 1/84
1/84 - 15/56 is -43/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
1/84 = 1 × 2/84 × 2 = 2/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
15/56 = 15 × 3/56 × 3 = 45/168 - Subtract the two like fractions:
2/168 - 45/168 = 2 - 45/168 = -43/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84-15/56 1/84-30/56 3/84-15/56 1/84-45/56 5/84-15/56 1/84-75/56 7/84-15/56