Subtract 15/8 from 84/5
1st number: 16 4/5, 2nd number: 1 7/8
84/5 - 15/8 is 597/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 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 8 × 5 = 40,
15/8 = 15 × 5/8 × 5 = 75/40 - Subtract the two like fractions:
672/40 - 75/40 = 672 - 75/40 = 597/40 - In mixed form: 1437/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-30/8 84/10-15/8 84/5-15/16 84/5-45/8 84/15-15/8 84/5-15/24 84/5-75/8 84/25-15/8 84/5-15/40 84/35-15/8 84/5-15/56