Add 81/5 and 30/8
1st number: 16 1/5, 2nd number: 3 6/8
81/5 + 30/8 is 399/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
81/5 = 81 × 8/5 × 8 = 648/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Add the two like fractions:
648/40 + 150/40 = 648 + 150/40 = 798/40 - 798/40 simplified gives 399/20
- So, 81/5 + 30/8 = 399/20
In mixed form: 1919/20
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