Subtract 21/8 from 48/9
1st number: 5 3/9, 2nd number: 2 5/8
48/9 - 21/8 is 65/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
48/9 = 48 × 8/9 × 8 = 384/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
21/8 = 21 × 9/8 × 9 = 189/72 - Subtract the two like fractions:
384/72 - 189/72 = 384 - 189/72 = 195/72 - After reducing the fraction, the answer is 65/24
- In mixed form: 217/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/9-21/8 48/9-42/8 48/18-21/8 48/9-21/16 48/9-63/8 48/27-21/8 48/9-21/24 48/45-21/8 48/9-21/40 48/63-21/8 48/9-21/56