Subtract 6/90 from 12/75
12/75 - 6/90 is 7/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
12/75 = 12 × 6/75 × 6 = 72/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
6/90 = 6 × 5/90 × 5 = 30/450 - Subtract the two like fractions:
72/450 - 30/450 = 72 - 30/450 = 42/450 - After reducing the fraction, the answer is 7/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75-6/90 12/75-12/90 36/75-6/90 12/75-18/90 60/75-6/90 12/75-30/90 84/75-6/90 12/75-42/90