Subtract 9/30 from 84/90
84/90 - 9/30 is 19/30.
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,
84/90 = 84 × 1/90 × 1 = 84/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
9/30 = 9 × 3/30 × 3 = 27/90 - Subtract the two like fractions:
84/90 - 27/90 = 84 - 27/90 = 57/90 - After reducing the fraction, the answer is 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90-18/30 84/90-9/60 84/90-27/30 84/90-9/90 84/90-45/30 84/90-63/30