Subtract 40/35 from 24/21
1st number: 1 3/21, 2nd number: 1 5/35
24/21 - 40/35 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
24/21 = 24 × 5/21 × 5 = 120/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
40/35 = 40 × 3/35 × 3 = 120/105 - Subtract the two like fractions:
120/105 - 120/105 = 120 - 120/105 = 0/105 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21-40/35 24/21-80/35 24/42-40/35 24/21-40/70 72/21-40/35 24/63-40/35