Subtract 16/24 from 40/21
1st number: 1 19/21, 2nd number: 16/24
40/21 - 16/24 is 26/21.
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,
40/21 = 40 × 8/21 × 8 = 320/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
16/24 = 16 × 7/24 × 7 = 112/168 - Subtract the two like fractions:
320/168 - 112/168 = 320 - 112/168 = 208/168 - After reducing the fraction, the answer is 26/21
- In mixed form: 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21-16/24 40/21-32/24 40/42-16/24 40/21-16/48 40/21-48/24 40/63-16/24 40/21-16/72 40/21-80/24