Add 42/75 and 30/81
42/75 + 30/81 is 628/675.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 75 × 27 = 2025,
42/75 = 42 × 27/75 × 27 = 1134/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
30/81 = 30 × 25/81 × 25 = 750/2025 - Add the two like fractions:
1134/2025 + 750/2025 = 1134 + 750/2025 = 1884/2025 - 1884/2025 simplified gives 628/675
- So, 42/75 + 30/81 = 628/675
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