Subtract 3/36 from 28/84
28/84 - 3/36 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
28/84 = 28 × 3/84 × 3 = 84/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
3/36 = 3 × 7/36 × 7 = 21/252 - Subtract the two like fractions:
84/252 - 21/252 = 84 - 21/252 = 63/252 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-3/36 28/84-6/36 28/84-3/72 28/84-9/36 28/84-15/36 28/84-21/36