Add 80/81 and 90/40
1st number: 80/81, 2nd number: 2 10/40
80/81 + 90/40 is 1049/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
80/81 = 80 × 40/81 × 40 = 3200/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
90/40 = 90 × 81/40 × 81 = 7290/3240 - Add the two like fractions:
3200/3240 + 7290/3240 = 3200 + 7290/3240 = 10490/3240 - 10490/3240 simplified gives 1049/324
- So, 80/81 + 90/40 = 1049/324
In mixed form: 377/324
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