Subtract 18/27 from 81/20
1st number: 4 1/20, 2nd number: 18/27
81/20 - 18/27 is 203/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
81/20 = 81 × 27/20 × 27 = 2187/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
18/27 = 18 × 20/27 × 20 = 360/540 - Subtract the two like fractions:
2187/540 - 360/540 = 2187 - 360/540 = 1827/540 - After reducing the fraction, the answer is 203/60
- In mixed form: 323/60
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