Add 2/5 and 81/8
1st number: 2/5, 2nd number: 10 1/8
2/5 + 81/8 is 421/40.
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,
2/5 = 2 × 8/5 × 8 = 16/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
81/8 = 81 × 5/8 × 5 = 405/40 - Add the two like fractions:
16/40 + 405/40 = 16 + 405/40 = 421/40 - So, 2/5 + 81/8 = 421/40
In mixed form: 1021/40
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