Subtract 1/45 from 12/25
12/25 - 1/45 is 103/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
12/25 = 12 × 9/25 × 9 = 108/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
1/45 = 1 × 5/45 × 5 = 5/225 - Subtract the two like fractions:
108/225 - 5/225 = 108 - 5/225 = 103/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/25-1/45 12/25-2/45 12/50-1/45 12/25-1/90 36/25-1/45 12/25-3/45 12/75-1/45 60/25-1/45 12/25-5/45 84/25-1/45 12/25-7/45