Subtract 20/81 from 54/30
1st number: 1 24/30, 2nd number: 20/81
54/30 - 20/81 is 629/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
54/30 = 54 × 27/30 × 27 = 1458/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
20/81 = 20 × 10/81 × 10 = 200/810 - Subtract the two like fractions:
1458/810 - 200/810 = 1458 - 200/810 = 1258/810 - After reducing the fraction, the answer is 629/405
- In mixed form: 1224/405
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