Subtract 63/8 from 84/18
1st number: 4 12/18, 2nd number: 7 7/8
84/18 - 63/8 is -77/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
84/18 = 84 × 4/18 × 4 = 336/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
63/8 = 63 × 9/8 × 9 = 567/72 - Subtract the two like fractions:
336/72 - 567/72 = 336 - 567/72 = -231/72 - After reducing the fraction, the answer is -77/24
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