Subtract 45/5 from 81/64
1st number: 1 17/64, 2nd number: 9 0/5
81/64 - 45/5 is -495/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 5 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
81/64 = 81 × 5/64 × 5 = 405/320 - Likewise, for the 2nd fraction, since 5 × 64 = 320,
45/5 = 45 × 64/5 × 64 = 2880/320 - Subtract the two like fractions:
405/320 - 2880/320 = 405 - 2880/320 = -2475/320 - After reducing the fraction, the answer is -495/64
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