Subtract 90/84 from 30/54
1st number: 30/54, 2nd number: 1 6/84
30/54 - 90/84 is -65/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
30/54 = 30 × 14/54 × 14 = 420/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
90/84 = 90 × 9/84 × 9 = 810/756 - Subtract the two like fractions:
420/756 - 810/756 = 420 - 810/756 = -390/756 - After reducing the fraction, the answer is -65/126
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