Subtract 6/10 from 42/54
42/54 - 6/10 is 8/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
6/10 = 6 × 27/10 × 27 = 162/270 - Subtract the two like fractions:
210/270 - 162/270 = 210 - 162/270 = 48/270 - After reducing the fraction, the answer is 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54-6/10 42/54-12/10 42/54-6/20 42/54-18/10 42/54-6/30 42/54-30/10 42/54-6/50 42/54-42/10 42/54-6/70