Subtract 84/63 from 8/9
1st number: 8/9, 2nd number: 1 21/63
8/9 - 84/63 is -4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
8/9 = 8 × 7/9 × 7 = 56/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Subtract the two like fractions:
56/63 - 84/63 = 56 - 84/63 = -28/63 - After reducing the fraction, the answer is -4/9
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