Subtract 42/90 from 6/10
6/10 - 42/90 is 2/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
6/10 = 6 × 9/10 × 9 = 54/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Subtract the two like fractions:
54/90 - 42/90 = 54 - 42/90 = 12/90 - After reducing the fraction, the answer is 2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/10-42/90 6/10-84/90 6/20-42/90 18/10-42/90 6/30-42/90 30/10-42/90 6/50-42/90 42/10-42/90 6/70-42/90