Subtract 50/28 from 84/21
1st number: 4 0/21, 2nd number: 1 22/28
84/21 - 50/28 is 31/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
84/21 = 84 × 4/21 × 4 = 336/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
50/28 = 50 × 3/28 × 3 = 150/84 - Subtract the two like fractions:
336/84 - 150/84 = 336 - 150/84 = 186/84 - After reducing the fraction, the answer is 31/14
- In mixed form: 23/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42-50/28 84/21-50/56 84/63-50/28 84/21-50/84