Subtract 70/75 from 42/28
1st number: 1 14/28, 2nd number: 70/75
42/28 - 70/75 is 17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
42/28 = 42 × 75/28 × 75 = 3150/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
70/75 = 70 × 28/75 × 28 = 1960/2100 - Subtract the two like fractions:
3150/2100 - 1960/2100 = 3150 - 1960/2100 = 1190/2100 - After reducing the fraction, the answer is 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-70/75 42/56-70/75 42/84-70/75