Subtract 30/84 from 1/5
1/5 - 30/84 is -11/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
1/5 = 1 × 84/5 × 84 = 84/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Subtract the two like fractions:
84/420 - 150/420 = 84 - 150/420 = -66/420 - After reducing the fraction, the answer is -11/70
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