Subtract 21/84 from 2/16
2/16 - 21/84 is -1/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
2/16 = 2 × 21/16 × 21 = 42/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
21/84 = 21 × 4/84 × 4 = 84/336 - Subtract the two like fractions:
42/336 - 84/336 = 42 - 84/336 = -42/336 - After reducing the fraction, the answer is -1/8
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