Subtract 54/84 from 4/90
4/90 - 54/84 is -377/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
4/90 = 4 × 14/90 × 14 = 56/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
54/84 = 54 × 15/84 × 15 = 810/1260 - Subtract the two like fractions:
56/1260 - 810/1260 = 56 - 810/1260 = -754/1260 - After reducing the fraction, the answer is -377/630
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