Subtract 27/84 from 30/28
1st number: 1 2/28, 2nd number: 27/84
30/28 - 27/84 is 3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
30/28 = 30 × 3/28 × 3 = 90/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
27/84 = 27 × 1/84 × 1 = 27/84 - Subtract the two like fractions:
90/84 - 27/84 = 90 - 27/84 = 63/84 - After reducing the fraction, the answer is 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-27/84 30/28-54/84 30/56-27/84 90/28-27/84 30/28-81/84 30/84-27/84