Subtract 7/84 from 84/4
1st number: 21 0/4, 2nd number: 7/84
84/4 - 7/84 is 251/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
84/4 = 84 × 21/4 × 21 = 1764/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Subtract the two like fractions:
1764/84 - 7/84 = 1764 - 7/84 = 1757/84 - After reducing the fraction, the answer is 251/12
- In mixed form: 2011/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-14/84 84/8-7/84 84/4-21/84 84/12-7/84 84/4-35/84 84/20-7/84 84/4-49/84 84/28-7/84