Subtract 70/24 from 14/21
1st number: 14/21, 2nd number: 2 22/24
14/21 - 70/24 is -9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
14/21 = 14 × 8/21 × 8 = 112/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
70/24 = 70 × 7/24 × 7 = 490/168 - Subtract the two like fractions:
112/168 - 490/168 = 112 - 490/168 = -378/168 - After reducing the fraction, the answer is -9/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21-70/24 14/42-70/24 14/21-70/48 42/21-70/24 14/63-70/24 14/21-70/72 70/21-70/24 98/21-70/24