Subtract 28/27 from 84/64
1st number: 1 20/64, 2nd number: 1 1/27
84/64 - 28/27 is 119/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 27 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 64 × 27 = 1728,
84/64 = 84 × 27/64 × 27 = 2268/1728 - Likewise, for the 2nd fraction, since 27 × 64 = 1728,
28/27 = 28 × 64/27 × 64 = 1792/1728 - Subtract the two like fractions:
2268/1728 - 1792/1728 = 2268 - 1792/1728 = 476/1728 - After reducing the fraction, the answer is 119/432
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/64-56/27 84/64-28/54 84/64-84/27 84/64-28/81