Add 81/8 and 9/40
1st number: 10 1/8, 2nd number: 9/40
81/8 + 9/40 is 207/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
81/8 = 81 × 5/8 × 5 = 405/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Add the two like fractions:
405/40 + 9/40 = 405 + 9/40 = 414/40 - 414/40 simplified gives 207/20
- So, 81/8 + 9/40 = 207/20
In mixed form: 107/20
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