Subtract 15/84 from 42/75
42/75 - 15/84 is 267/700.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
42/75 = 42 × 28/75 × 28 = 1176/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
15/84 = 15 × 25/84 × 25 = 375/2100 - Subtract the two like fractions:
1176/2100 - 375/2100 = 1176 - 375/2100 = 801/2100 - After reducing the fraction, the answer is 267/700
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75-15/84 42/75-30/84 42/75-45/84 42/75-75/84