Subtract 45/12 from 84/63
1st number: 1 21/63, 2nd number: 3 9/12
84/63 - 45/12 is -29/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
45/12 = 45 × 21/12 × 21 = 945/252 - Subtract the two like fractions:
336/252 - 945/252 = 336 - 945/252 = -609/252 - After reducing the fraction, the answer is -29/12
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