Subtract 21/48 from 15/9
1st number: 1 6/9, 2nd number: 21/48
15/9 - 21/48 is 59/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
15/9 = 15 × 16/9 × 16 = 240/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Subtract the two like fractions:
240/144 - 63/144 = 240 - 63/144 = 177/144 - After reducing the fraction, the answer is 59/48
- In mixed form: 111/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9-21/48 15/9-42/48 15/18-21/48 15/9-21/96 45/9-21/48 15/9-63/48 15/27-21/48 75/9-21/48 15/45-21/48 15/63-21/48