Add 70/7 and 15/81
1st number: 10 0/7, 2nd number: 15/81
70/7 + 15/81 is 275/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
70/7 = 70 × 81/7 × 81 = 5670/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
15/81 = 15 × 7/81 × 7 = 105/567 - Add the two like fractions:
5670/567 + 105/567 = 5670 + 105/567 = 5775/567 - 5775/567 simplified gives 275/27
- So, 70/7 + 15/81 = 275/27
In mixed form: 105/27
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