Subtract 18/28 from 25/18
1st number: 1 7/18, 2nd number: 18/28
25/18 - 18/28 is 47/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
25/18 = 25 × 14/18 × 14 = 350/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Subtract the two like fractions:
350/252 - 162/252 = 350 - 162/252 = 188/252 - After reducing the fraction, the answer is 47/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/18-18/28 25/18-36/28 25/36-18/28 25/18-18/56 75/18-18/28 25/18-54/28 25/54-18/28 25/18-18/84 25/18-90/28 25/90-18/28