Subtract 12/3 from 10/90
1st number: 10/90, 2nd number: 4 0/3
10/90 - 12/3 is -35/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 3 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
12/3 = 12 × 30/3 × 30 = 360/90 - Subtract the two like fractions:
10/90 - 360/90 = 10 - 360/90 = -350/90 - After reducing the fraction, the answer is -35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90-12/3 10/90-24/3 10/90-12/6 30/90-12/3 10/90-36/3 10/90-12/9 50/90-12/3 10/90-60/3 10/90-12/15 70/90-12/3 10/90-84/3 10/90-12/21