Subtract 45/12 from 3/25
1st number: 3/25, 2nd number: 3 9/12
3/25 - 45/12 is -363/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
3/25 = 3 × 12/25 × 12 = 36/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Subtract the two like fractions:
36/300 - 1125/300 = 36 - 1125/300 = -1089/300 - After reducing the fraction, the answer is -363/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/25-45/12 3/25-90/12 3/50-45/12 3/25-45/24 9/25-45/12 3/75-45/12 3/25-45/36 15/25-45/12 3/25-45/60 21/25-45/12 3/25-45/84