Subtract 21/8 from 2/16
1st number: 2/16, 2nd number: 2 5/8
2/16 - 21/8 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 8 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
2/16 = 2 × 1/16 × 1 = 2/16 - Likewise, for the 2nd fraction, since 8 × 2 = 16,
21/8 = 21 × 2/8 × 2 = 42/16 - Subtract the two like fractions:
2/16 - 42/16 = 2 - 42/16 = -40/16 - After reducing the fraction, the answer is -5/2
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