Subtract 10/42 from 80/9
1st number: 8 8/9, 2nd number: 10/42
80/9 - 10/42 is 545/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
80/9 = 80 × 14/9 × 14 = 1120/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126 - Subtract the two like fractions:
1120/126 - 30/126 = 1120 - 30/126 = 1090/126 - After reducing the fraction, the answer is 545/63
- In mixed form: 841/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9-20/42 80/18-10/42 80/9-10/84 80/9-30/42 80/27-10/42 80/9-50/42 80/45-10/42 80/9-70/42 80/63-10/42