Add 81/6 and 28/40
1st number: 13 3/6, 2nd number: 28/40
81/6 + 28/40 is 71/5.
Steps for adding 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,
28/40 = 28 × 3/40 × 3 = 84/120 - Add the two like fractions:
1620/120 + 84/120 = 1620 + 84/120 = 1704/120 - 1704/120 simplified gives 71/5
- So, 81/6 + 28/40 = 71/5
In mixed form: 141/5
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