Subtract 60/21 from 6/15
1st number: 6/15, 2nd number: 2 18/21
6/15 - 60/21 is -86/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
6/15 = 6 × 7/15 × 7 = 42/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
60/21 = 60 × 5/21 × 5 = 300/105 - Subtract the two like fractions:
42/105 - 300/105 = 42 - 300/105 = -258/105 - After reducing the fraction, the answer is -86/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15-60/21 6/30-60/21 6/15-60/42 18/15-60/21 6/45-60/21 6/15-60/63 30/15-60/21 6/75-60/21 42/15-60/21