Subtract 21/48 from 40/5
1st number: 8 0/5, 2nd number: 21/48
40/5 - 21/48 is 121/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 5 × 48 = 240,
40/5 = 40 × 48/5 × 48 = 1920/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Subtract the two like fractions:
1920/240 - 105/240 = 1920 - 105/240 = 1815/240 - After reducing the fraction, the answer is 121/16
- In mixed form: 79/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-21/48 40/5-42/48 40/10-21/48 40/5-21/96 40/5-63/48 40/15-21/48 40/25-21/48 40/35-21/48