Subtract 84/8 from 1/40
1st number: 1/40, 2nd number: 10 4/8
1/40 - 84/8 is -419/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
1/40 = 1 × 1/40 × 1 = 1/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
84/8 = 84 × 5/8 × 5 = 420/40 - Subtract the two like fractions:
1/40 - 420/40 = 1 - 420/40 = -419/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-84/8 1/80-84/8 1/40-84/16 3/40-84/8 1/40-84/24 5/40-84/8 1/40-84/40 7/40-84/8 1/40-84/56