Subtract 21/75 from 12/4
1st number: 3 0/4, 2nd number: 21/75
12/4 - 21/75 is 68/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 4 × 75 = 300,
12/4 = 12 × 75/4 × 75 = 900/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300 - Subtract the two like fractions:
900/300 - 84/300 = 900 - 84/300 = 816/300 - After reducing the fraction, the answer is 68/25
- In mixed form: 218/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/4-21/75 12/4-42/75 12/8-21/75 36/4-21/75 12/4-63/75 60/4-21/75 12/20-21/75 84/4-21/75 12/28-21/75