Subtract 15/40 from 81/6
1st number: 13 3/6, 2nd number: 15/40
81/6 - 15/40 is 105/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
81/6 = 81 × 20/6 × 20 = 1620/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Subtract the two like fractions:
1620/120 - 45/120 = 1620 - 45/120 = 1575/120 - After reducing the fraction, the answer is 105/8
- In mixed form: 131/8
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