Subtract 80/84 from 42/25
1st number: 1 17/25, 2nd number: 80/84
42/25 - 80/84 is 382/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 25 × 84 = 2100,
42/25 = 42 × 84/25 × 84 = 3528/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
80/84 = 80 × 25/84 × 25 = 2000/2100 - Subtract the two like fractions:
3528/2100 - 2000/2100 = 3528 - 2000/2100 = 1528/2100 - After reducing the fraction, the answer is 382/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25-80/84 42/50-80/84 42/75-80/84