Subtract 15/20 from 81/3
1st number: 27 0/3, 2nd number: 15/20
81/3 - 15/20 is 105/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
81/3 = 81 × 20/3 × 20 = 1620/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Subtract the two like fractions:
1620/60 - 45/60 = 1620 - 45/60 = 1575/60 - After reducing the fraction, the answer is 105/4
- In mixed form: 261/4
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