Subtract 45/49 from 42/25
1st number: 1 17/25, 2nd number: 45/49
42/25 - 45/49 is 933/1225.
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,
42/25 = 42 × 49/25 × 49 = 2058/1225 - Likewise, for the 2nd fraction, since 49 × 25 = 1225,
45/49 = 45 × 25/49 × 25 = 1125/1225 - Subtract the two like fractions:
2058/1225 - 1125/1225 = 2058 - 1125/1225 = 933/1225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25-45/49 42/25-90/49 42/50-45/49 42/25-45/98 42/75-45/49