Subtract 18/21 from 6/75
6/75 - 18/21 is -136/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
6/75 = 6 × 7/75 × 7 = 42/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
18/21 = 18 × 25/21 × 25 = 450/525 - Subtract the two like fractions:
42/525 - 450/525 = 42 - 450/525 = -408/525 - After reducing the fraction, the answer is -136/175
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