Subtract 3/42 from 80/10
1st number: 8 0/10, 2nd number: 3/42
80/10 - 3/42 is 111/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
80/10 = 80 × 21/10 × 21 = 1680/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Subtract the two like fractions:
1680/210 - 15/210 = 1680 - 15/210 = 1665/210 - After reducing the fraction, the answer is 111/14
- In mixed form: 713/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-6/42 80/20-3/42 80/10-3/84 80/10-9/42 80/30-3/42 80/10-15/42 80/50-3/42 80/10-21/42 80/70-3/42