Subtract 18/15 from 2/90
1st number: 2/90, 2nd number: 1 3/15
2/90 - 18/15 is -53/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
2/90 = 2 × 1/90 × 1 = 2/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
18/15 = 18 × 6/15 × 6 = 108/90 - Subtract the two like fractions:
2/90 - 108/90 = 2 - 108/90 = -106/90 - After reducing the fraction, the answer is -53/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90-18/15 2/90-36/15 2/90-18/30 6/90-18/15 2/90-54/15 2/90-18/45 10/90-18/15 2/90-90/15 2/90-18/75 14/90-18/15