Subtract 9/40 from 12/25
12/25 - 9/40 is 51/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
12/25 = 12 × 8/25 × 8 = 96/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
9/40 = 9 × 5/40 × 5 = 45/200 - Subtract the two like fractions:
96/200 - 45/200 = 96 - 45/200 = 51/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/25-9/40 12/25-18/40 12/50-9/40 12/25-9/80 36/25-9/40 12/25-27/40 12/75-9/40 60/25-9/40 12/25-45/40 84/25-9/40 12/25-63/40