Subtract 36/20 from 16/21
1st number: 16/21, 2nd number: 1 16/20
16/21 - 36/20 is -109/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
16/21 = 16 × 20/21 × 20 = 320/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
36/20 = 36 × 21/20 × 21 = 756/420 - Subtract the two like fractions:
320/420 - 756/420 = 320 - 756/420 = -436/420 - After reducing the fraction, the answer is -109/105
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