Subtract 12/8 from 2/90
1st number: 2/90, 2nd number: 1 4/8
2/90 - 12/8 is -133/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
2/90 = 2 × 4/90 × 4 = 8/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
12/8 = 12 × 45/8 × 45 = 540/360 - Subtract the two like fractions:
8/360 - 540/360 = 8 - 540/360 = -532/360 - After reducing the fraction, the answer is -133/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90-12/8 2/90-24/8 2/90-12/16 6/90-12/8 2/90-36/8 2/90-12/24 10/90-12/8 2/90-60/8 2/90-12/40 14/90-12/8 2/90-84/8 2/90-12/56