Subtract 75/54 from 4/84
1st number: 4/84, 2nd number: 1 21/54
4/84 - 75/54 is -169/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
4/84 = 4 × 9/84 × 9 = 36/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
75/54 = 75 × 14/54 × 14 = 1050/756 - Subtract the two like fractions:
36/756 - 1050/756 = 36 - 1050/756 = -1014/756 - After reducing the fraction, the answer is -169/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84-75/54 12/84-75/54 20/84-75/54 28/84-75/54