Subtract 28/42 from 54/5
1st number: 10 4/5, 2nd number: 28/42
54/5 - 28/42 is 152/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
54/5 = 54 × 42/5 × 42 = 2268/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Subtract the two like fractions:
2268/210 - 140/210 = 2268 - 140/210 = 2128/210 - After reducing the fraction, the answer is 152/15
- In mixed form: 102/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-56/42 54/10-28/42 54/5-28/84 54/5-84/42 54/15-28/42 54/25-28/42 54/35-28/42