2/3+-4/5+1/3+2/5 .23 प्लस माइनस वन बाय 5 प्लस वन बाय 3 प्लस टू वाईफाई ​

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1. Answer:

   Firstly group the rational numbers with same denominators

   2/3 + 1/3 + -4/5 + 2/5

   (2+1)/3 + (-4+2)/5

   3/3 + -2/5

   1/1 + -2/5

   By taking LCM for 1 and 5 we get, 5

   (1×5)/(1×5) + (-2×1)/(5×1)

   5/5 + -2/5

   Since the denominators are same can be added directly

   (5-2)/5 = 3/5

   Answer

   2/3 + 1/3 + -4/5 + 2/5= 3/5

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