Subtract 10/90 from 12/4
1st number: 3 0/4, 2nd number: 10/90
12/4 - 10/90 is 26/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
12/4 = 12 × 45/4 × 45 = 540/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
10/90 = 10 × 2/90 × 2 = 20/180 - Subtract the two like fractions:
540/180 - 20/180 = 540 - 20/180 = 520/180 - After reducing the fraction, the answer is 26/9
- In mixed form: 28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/4-10/90 12/4-20/90 12/8-10/90 36/4-10/90 12/4-30/90 60/4-10/90 12/4-50/90 12/20-10/90 84/4-10/90 12/4-70/90 12/28-10/90