Subtract 5/84 from 1/40
1/40 - 5/84 is -29/840.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
1/40 = 1 × 21/40 × 21 = 21/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
5/84 = 5 × 10/84 × 10 = 50/840 - Subtract the two like fractions:
21/840 - 50/840 = 21 - 50/840 = -29/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-5/84 1/40-10/84 1/80-5/84 3/40-5/84 1/40-15/84 5/40-5/84 1/40-25/84 7/40-5/84 1/40-35/84