Add 72/8 and 80/81
1st number: 9 0/8, 2nd number: 80/81
72/8 + 80/81 is 809/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
72/8 = 72 × 81/8 × 81 = 5832/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
80/81 = 80 × 8/81 × 8 = 640/648 - Add the two like fractions:
5832/648 + 640/648 = 5832 + 640/648 = 6472/648 - 6472/648 simplified gives 809/81
- So, 72/8 + 80/81 = 809/81
In mixed form: 980/81
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