Subtract 10/12 from 90/60
1st number: 1 30/60, 2nd number: 10/12
90/60 - 10/12 is 2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
10/12 = 10 × 5/12 × 5 = 50/60 - Subtract the two like fractions:
90/60 - 50/60 = 90 - 50/60 = 40/60 - After reducing the fraction, the answer is 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60-20/12 90/60-10/24 90/60-30/12 90/60-10/36 90/60-50/12 90/60-10/60 90/60-70/12 90/60-10/84