Add 1/70 and 72/81
1/70 + 72/81 is 569/630.
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,
72/81 = 72 × 70/81 × 70 = 5040/5670 - Add the two like fractions:
81/5670 + 5040/5670 = 81 + 5040/5670 = 5121/5670 - 5121/5670 simplified gives 569/630
- So, 1/70 + 72/81 = 569/630
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