Subtract 54/75 from 1/20
1/20 - 54/75 is -67/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
1/20 = 1 × 15/20 × 15 = 15/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
54/75 = 54 × 4/75 × 4 = 216/300 - Subtract the two like fractions:
15/300 - 216/300 = 15 - 216/300 = -201/300 - After reducing the fraction, the answer is -67/100
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