Subtract 81/30 from 9/4
1st number: 2 1/4, 2nd number: 2 21/30
9/4 - 81/30 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60 - Subtract the two like fractions:
135/60 - 162/60 = 135 - 162/60 = -27/60 - After reducing the fraction, the answer is -9/20
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