Subtract 54/28 from 35/42
1st number: 35/42, 2nd number: 1 26/28
35/42 - 54/28 is -23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
35/42 = 35 × 2/42 × 2 = 70/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
54/28 = 54 × 3/28 × 3 = 162/84 - Subtract the two like fractions:
70/84 - 162/84 = 70 - 162/84 = -92/84 - After reducing the fraction, the answer is -23/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-54/28 35/84-54/28 35/42-54/56 35/42-54/84