Add 42/81 and 75/30
1st number: 42/81, 2nd number: 2 15/30
42/81 + 75/30 is 163/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
42/81 = 42 × 10/81 × 10 = 420/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
75/30 = 75 × 27/30 × 27 = 2025/810 - Add the two like fractions:
420/810 + 2025/810 = 420 + 2025/810 = 2445/810 - 2445/810 simplified gives 163/54
- So, 42/81 + 75/30 = 163/54
In mixed form: 31/54
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