Subtract 40/49 from 15/25
15/25 - 40/49 is -53/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 49 is 1225
Next, find the equivalent fraction of both fractional numbers with denominator 1225 - For the 1st fraction, since 25 × 49 = 1225,
15/25 = 15 × 49/25 × 49 = 735/1225 - Likewise, for the 2nd fraction, since 49 × 25 = 1225,
40/49 = 40 × 25/49 × 25 = 1000/1225 - Subtract the two like fractions:
735/1225 - 1000/1225 = 735 - 1000/1225 = -265/1225 - After reducing the fraction, the answer is -53/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25-40/49 15/25-80/49 15/50-40/49 15/25-40/98 45/25-40/49 15/75-40/49 75/25-40/49