Subtract 1/45 from 25/2
1st number: 12 1/2, 2nd number: 1/45
25/2 - 1/45 is 1123/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
25/2 = 25 × 45/2 × 45 = 1125/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Subtract the two like fractions:
1125/90 - 2/90 = 1125 - 2/90 = 1123/90 - In mixed form: 1243/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2-1/45 25/2-2/45 25/4-1/45 25/2-1/90 75/2-1/45 25/2-3/45 25/6-1/45 25/2-5/45 25/10-1/45 25/2-7/45 25/14-1/45