Subtract 54/7 from 9/12
1st number: 9/12, 2nd number: 7 5/7
9/12 - 54/7 is -195/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
9/12 = 9 × 7/12 × 7 = 63/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
54/7 = 54 × 12/7 × 12 = 648/84 - Subtract the two like fractions:
63/84 - 648/84 = 63 - 648/84 = -585/84 - After reducing the fraction, the answer is -195/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12-54/7 9/24-54/7 9/12-54/14 27/12-54/7 9/36-54/7 9/12-54/21 45/12-54/7 9/60-54/7 9/12-54/35 63/12-54/7 9/84-54/7 9/12-54/49