Subtract 20/64 from 2/54
2/54 - 20/64 is -119/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 64 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 54 × 32 = 1728,
2/54 = 2 × 32/54 × 32 = 64/1728 - Likewise, for the 2nd fraction, since 64 × 27 = 1728,
20/64 = 20 × 27/64 × 27 = 540/1728 - Subtract the two like fractions:
64/1728 - 540/1728 = 64 - 540/1728 = -476/1728 - After reducing the fraction, the answer is -119/432
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