Subtract 12/24 from 5/90
5/90 - 12/24 is -4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
5/90 = 5 × 4/90 × 4 = 20/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
12/24 = 12 × 15/24 × 15 = 180/360 - Subtract the two like fractions:
20/360 - 180/360 = 20 - 180/360 = -160/360 - After reducing the fraction, the answer is -4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90-12/24 5/90-12/48 15/90-12/24 5/90-36/24 5/90-12/72 25/90-12/24 5/90-60/24 35/90-12/24 5/90-84/24