Subtract 90/27 from 16/30
1st number: 16/30, 2nd number: 3 9/27
16/30 - 90/27 is -14/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
16/30 = 16 × 9/30 × 9 = 144/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270 - Subtract the two like fractions:
144/270 - 900/270 = 144 - 900/270 = -756/270 - After reducing the fraction, the answer is -14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30-90/27 16/60-90/27 16/30-90/54 48/30-90/27 16/90-90/27 16/30-90/81 80/30-90/27