Subtract 9/15 from 6/56
6/56 - 9/15 is -69/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
6/56 = 6 × 15/56 × 15 = 90/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
9/15 = 9 × 56/15 × 56 = 504/840 - Subtract the two like fractions:
90/840 - 504/840 = 90 - 504/840 = -414/840 - After reducing the fraction, the answer is -69/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/56-9/15 6/56-18/15 6/56-9/30 18/56-9/15 6/56-27/15 6/56-9/45 30/56-9/15 6/56-45/15 6/56-9/75 42/56-9/15 6/56-63/15