Subtract 28/32 from 28/18
1st number: 1 10/18, 2nd number: 28/32
28/18 - 28/32 is 49/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
28/18 = 28 × 16/18 × 16 = 448/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
28/32 = 28 × 9/32 × 9 = 252/288 - Subtract the two like fractions:
448/288 - 252/288 = 448 - 252/288 = 196/288 - After reducing the fraction, the answer is 49/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-28/32 28/18-56/32 28/36-28/32 28/18-28/64 84/18-28/32 28/18-84/32 28/54-28/32 28/18-28/96 28/90-28/32