Subtract 8/81 from 72/45
1st number: 1 27/45, 2nd number: 8/81
72/45 - 8/81 is 608/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
72/45 = 72 × 9/45 × 9 = 648/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
8/81 = 8 × 5/81 × 5 = 40/405 - Subtract the two like fractions:
648/405 - 40/405 = 648 - 40/405 = 608/405 - In mixed form: 1203/405
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