Add 81/84 and 25/75
81/84 + 25/75 is 109/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
81/84 = 81 × 25/84 × 25 = 2025/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
25/75 = 25 × 28/75 × 28 = 700/2100 - Add the two like fractions:
2025/2100 + 700/2100 = 2025 + 700/2100 = 2725/2100 - 2725/2100 simplified gives 109/84
- So, 81/84 + 25/75 = 109/84
In mixed form: 125/84
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