Subtract 75/54 from 63/56
1st number: 1 7/56, 2nd number: 1 21/54
63/56 - 75/54 is -19/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 54 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 56 × 27 = 1512,
63/56 = 63 × 27/56 × 27 = 1701/1512 - Likewise, for the 2nd fraction, since 54 × 28 = 1512,
75/54 = 75 × 28/54 × 28 = 2100/1512 - Subtract the two like fractions:
1701/1512 - 2100/1512 = 1701 - 2100/1512 = -399/1512 - After reducing the fraction, the answer is -19/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: