Subtract 7/40 from 84/5
1st number: 16 4/5, 2nd number: 7/40
84/5 - 7/40 is 133/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
84/5 = 84 × 8/5 × 8 = 672/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
7/40 = 7 × 1/40 × 1 = 7/40 - Subtract the two like fractions:
672/40 - 7/40 = 672 - 7/40 = 665/40 - After reducing the fraction, the answer is 133/8
- In mixed form: 165/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-14/40 84/10-7/40 84/5-7/80 84/5-21/40 84/15-7/40 84/5-35/40 84/25-7/40 84/5-49/40 84/35-7/40