Subtract 25/6 from 90/72
1st number: 1 18/72, 2nd number: 4 1/6
90/72 - 25/6 is -35/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 6 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Likewise, for the 2nd fraction, since 6 × 12 = 72,
25/6 = 25 × 12/6 × 12 = 300/72 - Subtract the two like fractions:
90/72 - 300/72 = 90 - 300/72 = -210/72 - After reducing the fraction, the answer is -35/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-50/6 90/72-25/12 90/72-75/6 90/72-25/18 90/72-25/30 90/72-25/42