Subtract 75/54 from 9/7
1st number: 1 2/7, 2nd number: 1 21/54
9/7 - 75/54 is -13/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
9/7 = 9 × 54/7 × 54 = 486/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378 - Subtract the two like fractions:
486/378 - 525/378 = 486 - 525/378 = -39/378 - After reducing the fraction, the answer is -13/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7-75/54 9/14-75/54 27/7-75/54 9/21-75/54 45/7-75/54 9/35-75/54 63/7-75/54 9/49-75/54