Subtract 12/54 from 42/5
1st number: 8 2/5, 2nd number: 12/54
42/5 - 12/54 is 368/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
42/5 = 42 × 54/5 × 54 = 2268/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Subtract the two like fractions:
2268/270 - 60/270 = 2268 - 60/270 = 2208/270 - After reducing the fraction, the answer is 368/45
- In mixed form: 88/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-12/54 42/5-24/54 42/10-12/54 42/5-36/54 42/15-12/54 42/5-60/54 42/25-12/54 42/5-84/54 42/35-12/54