Subtract 21/18 from 48/9
1st number: 5 3/9, 2nd number: 1 3/18
48/9 - 21/18 is 25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
48/9 = 48 × 2/9 × 2 = 96/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Subtract the two like fractions:
96/18 - 21/18 = 96 - 21/18 = 75/18 - After reducing the fraction, the answer is 25/6
- In mixed form: 41/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/9-21/18 48/9-42/18 48/18-21/18 48/9-21/36 48/9-63/18 48/27-21/18 48/9-21/54 48/45-21/18 48/9-21/90 48/63-21/18