Add 90/81 and 40/75
1st number: 1 9/81, 2nd number: 40/75
90/81 + 40/75 is 74/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 75 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 81 × 25 = 2025,
90/81 = 90 × 25/81 × 25 = 2250/2025 - Likewise, for the 2nd fraction, since 75 × 27 = 2025,
40/75 = 40 × 27/75 × 27 = 1080/2025 - Add the two like fractions:
2250/2025 + 1080/2025 = 2250 + 1080/2025 = 3330/2025 - 3330/2025 simplified gives 74/45
- So, 90/81 + 40/75 = 74/45
In mixed form: 129/45
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Related: 90/81+80/75