Subtract 54/7 from 84/12
1st number: 7 0/12, 2nd number: 7 5/7
84/12 - 54/7 is -5/7.
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,
84/12 = 84 × 7/12 × 7 = 588/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
54/7 = 54 × 12/7 × 12 = 648/84 - Subtract the two like fractions:
588/84 - 648/84 = 588 - 648/84 = -60/84 - After reducing the fraction, the answer is -5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24-54/7 84/12-54/14 84/36-54/7 84/12-54/21 84/60-54/7 84/12-54/35 84/12-54/49