Subtract 30/24 from 50/21
1st number: 2 8/21, 2nd number: 1 6/24
50/21 - 30/24 is 95/84.
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,
50/21 = 50 × 8/21 × 8 = 400/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
30/24 = 30 × 7/24 × 7 = 210/168 - Subtract the two like fractions:
400/168 - 210/168 = 400 - 210/168 = 190/168 - After reducing the fraction, the answer is 95/84
- In mixed form: 111/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-60/24 50/42-30/24 50/21-30/48 50/21-90/24 50/63-30/24 50/21-30/72