Subtract 12/90 from 12/10
1st number: 1 2/10, 2nd number: 12/90
12/10 - 12/90 is 16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
12/10 = 12 × 9/10 × 9 = 108/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Subtract the two like fractions:
108/90 - 12/90 = 108 - 12/90 = 96/90 - After reducing the fraction, the answer is 16/15
- In mixed form: 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10-12/90 12/10-24/90 12/20-12/90 36/10-12/90 12/10-36/90 12/30-12/90 60/10-12/90 12/10-60/90 12/50-12/90 84/10-12/90 12/10-84/90 12/70-12/90