Add 10/25 and 21/81
10/25 + 21/81 is 89/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 25 × 81 = 2025,
10/25 = 10 × 81/25 × 81 = 810/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
21/81 = 21 × 25/81 × 25 = 525/2025 - Add the two like fractions:
810/2025 + 525/2025 = 810 + 525/2025 = 1335/2025 - 1335/2025 simplified gives 89/135
- So, 10/25 + 21/81 = 89/135
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