Subtract 4/15 from 2/84
2/84 - 4/15 is -17/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
2/84 = 2 × 5/84 × 5 = 10/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
4/15 = 4 × 28/15 × 28 = 112/420 - Subtract the two like fractions:
10/420 - 112/420 = 10 - 112/420 = -102/420 - After reducing the fraction, the answer is -17/70
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