Subtract 20/42 from 84/75
1st number: 1 9/75, 2nd number: 20/42
84/75 - 20/42 is 338/525.
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,
84/75 = 84 × 14/75 × 14 = 1176/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
20/42 = 20 × 25/42 × 25 = 500/1050 - Subtract the two like fractions:
1176/1050 - 500/1050 = 1176 - 500/1050 = 676/1050 - After reducing the fraction, the answer is 338/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75-40/42 84/75-20/84 84/75-60/42