Subtract 90/15 from 42/6
1st number: 7 0/6, 2nd number: 6 0/15
42/6 - 90/15 is 1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
42/6 = 42 × 5/6 × 5 = 210/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
90/15 = 90 × 2/15 × 2 = 180/30 - Subtract the two like fractions:
210/30 - 180/30 = 210 - 180/30 = 30/30 - After reducing the fraction, the answer is 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-90/15 42/12-90/15 42/6-90/30 42/18-90/15 42/6-90/45 42/30-90/15 42/6-90/75