Subtract 42/80 from 35/4
1st number: 8 3/4, 2nd number: 42/80
35/4 - 42/80 is 329/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
35/4 = 35 × 20/4 × 20 = 700/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Subtract the two like fractions:
700/80 - 42/80 = 700 - 42/80 = 658/80 - After reducing the fraction, the answer is 329/40
- In mixed form: 89/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4-42/80 35/4-84/80 35/8-42/80 35/12-42/80 35/20-42/80 35/28-42/80