Subtract 27/21 from 24/35
1st number: 24/35, 2nd number: 1 6/21
24/35 - 27/21 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
24/35 = 24 × 3/35 × 3 = 72/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
27/21 = 27 × 5/21 × 5 = 135/105 - Subtract the two like fractions:
72/105 - 135/105 = 72 - 135/105 = -63/105 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/35-27/21 24/35-54/21 24/70-27/21 24/35-27/42 72/35-27/21 24/35-81/21 24/35-27/63