Subtract 9/8 from 81/45
1st number: 1 36/45, 2nd number: 1 1/8
81/45 - 9/8 is 27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
81/45 = 81 × 8/45 × 8 = 648/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
9/8 = 9 × 45/8 × 45 = 405/360 - Subtract the two like fractions:
648/360 - 405/360 = 648 - 405/360 = 243/360 - After reducing the fraction, the answer is 27/40
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