Subtract 54/56 from 4/15
4/15 - 54/56 is -293/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
4/15 = 4 × 56/15 × 56 = 224/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
54/56 = 54 × 15/56 × 15 = 810/840 - Subtract the two like fractions:
224/840 - 810/840 = 224 - 810/840 = -586/840 - After reducing the fraction, the answer is -293/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-54/56 4/30-54/56 12/15-54/56 4/45-54/56 20/15-54/56 4/75-54/56 28/15-54/56