Add 40/81 and 9/8
1st number: 40/81, 2nd number: 1 1/8
40/81 + 9/8 is 1049/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
40/81 = 40 × 8/81 × 8 = 320/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
9/8 = 9 × 81/8 × 81 = 729/648 - Add the two like fractions:
320/648 + 729/648 = 320 + 729/648 = 1049/648 - So, 40/81 + 9/8 = 1049/648
In mixed form: 1401/648
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