Subtract 4/75 from 30/70
30/70 - 4/75 is 197/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
30/70 = 30 × 15/70 × 15 = 450/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
4/75 = 4 × 14/75 × 14 = 56/1050 - Subtract the two like fractions:
450/1050 - 56/1050 = 450 - 56/1050 = 394/1050 - After reducing the fraction, the answer is 197/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70-4/75 30/70-8/75 90/70-4/75 30/70-12/75 30/70-20/75 30/70-28/75