Subtract 54/56 from 28/35
28/35 - 54/56 is -23/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
54/56 = 54 × 5/56 × 5 = 270/280 - Subtract the two like fractions:
224/280 - 270/280 = 224 - 270/280 = -46/280 - After reducing the fraction, the answer is -23/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-54/56 28/70-54/56 84/35-54/56