Add 1/70 and 84/81
1st number: 1/70, 2nd number: 1 3/81
1/70 + 84/81 is 1987/1890.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
1/70 = 1 × 81/70 × 81 = 81/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
84/81 = 84 × 70/81 × 70 = 5880/5670 - Add the two like fractions:
81/5670 + 5880/5670 = 81 + 5880/5670 = 5961/5670 - 5961/5670 simplified gives 1987/1890
- So, 1/70 + 84/81 = 1987/1890
In mixed form: 197/1890
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