Add 42/81 and 7/25
42/81 + 7/25 is 539/675.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 25 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 81 × 25 = 2025,
42/81 = 42 × 25/81 × 25 = 1050/2025 - Likewise, for the 2nd fraction, since 25 × 81 = 2025,
7/25 = 7 × 81/25 × 81 = 567/2025 - Add the two like fractions:
1050/2025 + 567/2025 = 1050 + 567/2025 = 1617/2025 - 1617/2025 simplified gives 539/675
- So, 42/81 + 7/25 = 539/675
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