Add 70/25 and 12/81
1st number: 2 20/25, 2nd number: 12/81
70/25 + 12/81 is 398/135.
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,
70/25 = 70 × 81/25 × 81 = 5670/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
12/81 = 12 × 25/81 × 25 = 300/2025 - Add the two like fractions:
5670/2025 + 300/2025 = 5670 + 300/2025 = 5970/2025 - 5970/2025 simplified gives 398/135
- So, 70/25 + 12/81 = 398/135
In mixed form: 2128/135
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