Subtract 12/4 from 2/90
1st number: 2/90, 2nd number: 3 0/4
2/90 - 12/4 is -134/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
2/90 = 2 × 2/90 × 2 = 4/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
12/4 = 12 × 45/4 × 45 = 540/180 - Subtract the two like fractions:
4/180 - 540/180 = 4 - 540/180 = -536/180 - After reducing the fraction, the answer is -134/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90-12/4 2/90-24/4 2/90-12/8 6/90-12/4 2/90-36/4 10/90-12/4 2/90-60/4 2/90-12/20 14/90-12/4 2/90-84/4 2/90-12/28