Subtract 16/21 from 12/63
12/63 - 16/21 is -4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
12/63 = 12 × 1/63 × 1 = 12/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
16/21 = 16 × 3/21 × 3 = 48/63 - Subtract the two like fractions:
12/63 - 48/63 = 12 - 48/63 = -36/63 - After reducing the fraction, the answer is -4/7
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