Subtract 42/75 from 3/54
3/54 - 42/75 is -227/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 75 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 54 × 25 = 1350,
3/54 = 3 × 25/54 × 25 = 75/1350 - Likewise, for the 2nd fraction, since 75 × 18 = 1350,
42/75 = 42 × 18/75 × 18 = 756/1350 - Subtract the two like fractions:
75/1350 - 756/1350 = 75 - 756/1350 = -681/1350 - After reducing the fraction, the answer is -227/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/54-42/75 3/54-84/75 9/54-42/75 15/54-42/75 21/54-42/75