Subtract 30/54 from 28/64
28/64 - 30/54 is -17/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 54 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 64 × 27 = 1728,
28/64 = 28 × 27/64 × 27 = 756/1728 - Likewise, for the 2nd fraction, since 54 × 32 = 1728,
30/54 = 30 × 32/54 × 32 = 960/1728 - Subtract the two like fractions:
756/1728 - 960/1728 = 756 - 960/1728 = -204/1728 - After reducing the fraction, the answer is -17/144
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