Subtract 54/56 from 10/30
10/30 - 54/56 is -53/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
10/30 = 10 × 28/30 × 28 = 280/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
54/56 = 54 × 15/56 × 15 = 810/840 - Subtract the two like fractions:
280/840 - 810/840 = 280 - 810/840 = -530/840 - After reducing the fraction, the answer is -53/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30-54/56 10/60-54/56 10/90-54/56 50/30-54/56 70/30-54/56