Subtract 18/30 from 80/10
1st number: 8 0/10, 2nd number: 18/30
80/10 - 18/30 is 37/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
80/10 = 80 × 3/10 × 3 = 240/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
18/30 = 18 × 1/30 × 1 = 18/30 - Subtract the two like fractions:
240/30 - 18/30 = 240 - 18/30 = 222/30 - After reducing the fraction, the answer is 37/5
- In mixed form: 72/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-36/30 80/20-18/30 80/10-18/60 80/10-54/30 80/30-18/30 80/10-18/90 80/10-90/30 80/50-18/30 80/70-18/30