Subtract 84/24 from 7/90
1st number: 7/90, 2nd number: 3 12/24
7/90 - 84/24 is -154/45.
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,
7/90 = 7 × 4/90 × 4 = 28/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
84/24 = 84 × 15/24 × 15 = 1260/360 - Subtract the two like fractions:
28/360 - 1260/360 = 28 - 1260/360 = -1232/360 - After reducing the fraction, the answer is -154/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90-84/24 7/90-84/48 21/90-84/24 7/90-84/72 35/90-84/24 49/90-84/24