Subtract 54/21 from 20/75
1st number: 20/75, 2nd number: 2 12/21
20/75 - 54/21 is -242/105.
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,
20/75 = 20 × 7/75 × 7 = 140/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
54/21 = 54 × 25/21 × 25 = 1350/525 - Subtract the two like fractions:
140/525 - 1350/525 = 140 - 1350/525 = -1210/525 - After reducing the fraction, the answer is -242/105
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