SOLUTION: What is the solution and answer of "1/3-(-2/7)"

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Question 1019764: What is the solution and answer of "1/3-(-2/7)"
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by ikleyn(52915) About Me  (Show Source):
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What is the solution and answer of "1/3-(-2/7)"
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1%2F3 - %28-2%2F7%29 = 1%2F3 + 2%2F7 =    (write fractions with common denominator)

= 7%2F21 + 6%2F21 = %287%2B6%29%2F21 = 13%2F21.


When manipulate with fractions (adding, distracting), always write them with the common denominator.