Subtract 81/8 from 6/40
1st number: 6/40, 2nd number: 10 1/8
6/40 - 81/8 is -399/40.
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,
6/40 = 6 × 1/40 × 1 = 6/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
81/8 = 81 × 5/8 × 5 = 405/40 - Subtract the two like fractions:
6/40 - 405/40 = 6 - 405/40 = -399/40
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