Subtract 20/70 from 9/75
9/75 - 20/70 is -29/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
9/75 = 9 × 14/75 × 14 = 126/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
20/70 = 20 × 15/70 × 15 = 300/1050 - Subtract the two like fractions:
126/1050 - 300/1050 = 126 - 300/1050 = -174/1050 - After reducing the fraction, the answer is -29/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/75-20/70 9/75-40/70 27/75-20/70 9/75-60/70 45/75-20/70 63/75-20/70