Subtract 1/70 from 1/84
1/84 - 1/70 is -1/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
1/84 = 1 × 5/84 × 5 = 5/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
1/70 = 1 × 6/70 × 6 = 6/420 - Subtract the two like fractions:
5/420 - 6/420 = 5 - 6/420 = -1/420
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