Subtract 4/40 from 81/6
1st number: 13 3/6, 2nd number: 4/40
81/6 - 4/40 is 67/5.
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,
4/40 = 4 × 3/40 × 3 = 12/120 - Subtract the two like fractions:
1620/120 - 12/120 = 1620 - 12/120 = 1608/120 - After reducing the fraction, the answer is 67/5
- In mixed form: 132/5
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