Subtract 96/90 from 21/12
1st number: 1 9/12, 2nd number: 1 6/90
21/12 - 96/90 is 41/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
21/12 = 21 × 15/12 × 15 = 315/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
96/90 = 96 × 2/90 × 2 = 192/180 - Subtract the two like fractions:
315/180 - 192/180 = 315 - 192/180 = 123/180 - After reducing the fraction, the answer is 41/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12-96/90 21/24-96/90 63/12-96/90 21/36-96/90 21/60-96/90 21/84-96/90