Subtract 10/42 from 70/75
70/75 - 10/42 is 73/105.
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,
70/75 = 70 × 14/75 × 14 = 980/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
10/42 = 10 × 25/42 × 25 = 250/1050 - Subtract the two like fractions:
980/1050 - 250/1050 = 980 - 250/1050 = 730/1050 - After reducing the fraction, the answer is 73/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/75-20/42 70/75-10/84 70/75-30/42 70/75-50/42 70/75-70/42