Subtract 30/54 from 42/4
1st number: 10 2/4, 2nd number: 30/54
42/4 - 30/54 is 179/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
42/4 = 42 × 27/4 × 27 = 1134/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
30/54 = 30 × 2/54 × 2 = 60/108 - Subtract the two like fractions:
1134/108 - 60/108 = 1134 - 60/108 = 1074/108 - After reducing the fraction, the answer is 179/18
- In mixed form: 917/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-30/54 42/4-60/54 42/8-30/54 42/4-90/54 42/12-30/54 42/20-30/54 42/28-30/54