Subtract 84/16 from 90/36
1st number: 2 18/36, 2nd number: 5 4/16
90/36 - 84/16 is -11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
90/36 = 90 × 4/36 × 4 = 360/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
84/16 = 84 × 9/16 × 9 = 756/144 - Subtract the two like fractions:
360/144 - 756/144 = 360 - 756/144 = -396/144 - After reducing the fraction, the answer is -11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-84/16 90/36-84/32 90/36-84/48 90/36-84/80