Subtract 90/30 from 80/5
1st number: 16 0/5, 2nd number: 3 0/30
80/5 - 90/30 is 13/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
80/5 = 80 × 6/5 × 6 = 480/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Subtract the two like fractions:
480/30 - 90/30 = 480 - 90/30 = 390/30 - After reducing the fraction, the answer is 13/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-90/30 80/5-90/60 80/15-90/30 80/25-90/30 80/35-90/30