Add 90/30 and 30/81
1st number: 3 0/30, 2nd number: 30/81
90/30 + 30/81 is 91/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
90/30 = 90 × 27/30 × 27 = 2430/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Add the two like fractions:
2430/810 + 300/810 = 2430 + 300/810 = 2730/810 - 2730/810 simplified gives 91/27
- So, 90/30 + 30/81 = 91/27
In mixed form: 310/27
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