Subtract 8/21 from 16/24
16/24 - 8/21 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
16/24 = 16 × 7/24 × 7 = 112/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
8/21 = 8 × 8/21 × 8 = 64/168 - Subtract the two like fractions:
112/168 - 64/168 = 112 - 64/168 = 48/168 - After reducing the fraction, the answer is 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/24-8/21 16/24-16/21 16/48-8/21 16/24-8/42 48/24-8/21 16/24-24/21 16/72-8/21 16/24-8/63 80/24-8/21 16/24-40/21 16/24-56/21