Add 1/20 and 81/8
1st number: 1/20, 2nd number: 10 1/8
1/20 + 81/8 is 407/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
1/20 = 1 × 2/20 × 2 = 2/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
81/8 = 81 × 5/8 × 5 = 405/40 - Add the two like fractions:
2/40 + 405/40 = 2 + 405/40 = 407/40 - So, 1/20 + 81/8 = 407/40
In mixed form: 107/40
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