Subtract 15/4 from 84/63
1st number: 1 21/63, 2nd number: 3 3/4
84/63 - 15/4 is -29/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 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 4 × 63 = 252,
15/4 = 15 × 63/4 × 63 = 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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