Add 81/21 and 36/75
1st number: 3 18/21, 2nd number: 36/75
81/21 + 36/75 is 759/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
81/21 = 81 × 25/21 × 25 = 2025/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
36/75 = 36 × 7/75 × 7 = 252/525 - Add the two like fractions:
2025/525 + 252/525 = 2025 + 252/525 = 2277/525 - 2277/525 simplified gives 759/175
- So, 81/21 + 36/75 = 759/175
In mixed form: 459/175
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