Subtract 16/90 from 9/30
9/30 - 16/90 is 11/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
9/30 = 9 × 3/30 × 3 = 27/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
16/90 = 16 × 1/90 × 1 = 16/90 - Subtract the two like fractions:
27/90 - 16/90 = 27 - 16/90 = 11/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-16/90 9/30-32/90 9/60-16/90 27/30-16/90 9/30-48/90 9/90-16/90 45/30-16/90 9/30-80/90 63/30-16/90