Subtract 1/42 from 15/75
15/75 - 1/42 is 37/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
15/75 = 15 × 14/75 × 14 = 210/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
1/42 = 1 × 25/42 × 25 = 25/1050 - Subtract the two like fractions:
210/1050 - 25/1050 = 210 - 25/1050 = 185/1050 - After reducing the fraction, the answer is 37/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75-1/42 15/75-2/42 15/75-1/84 45/75-1/42 15/75-3/42 15/75-5/42 15/75-7/42