Subtract 5/30 from 1/90
1/90 - 5/30 is -7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
5/30 = 5 × 3/30 × 3 = 15/90 - Subtract the two like fractions:
1/90 - 15/90 = 1 - 15/90 = -14/90 - After reducing the fraction, the answer is -7/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90-5/30 1/90-10/30 1/90-5/60 3/90-5/30 1/90-15/30 1/90-5/90 5/90-5/30 1/90-25/30 7/90-5/30 1/90-35/30