SOLUTION: what number must subtacted from both numerator and denominator of the fraction 11/23 to give a fraction whose value is 2/5?

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Question 1089857: what number must subtacted from both numerator and denominator of the fraction 11/23 to give a fraction whose value is 2/5?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
+%2811-x%29+%2F+%2823-x%29+=+2%2F5+
++55-5x+=+46-2x+
+++++++9+=+3x+
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Ans: +highlight%28x+=+3%29+
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Check: +%2811-3%29%2F%2823-3%29+=+8%2F20+=+2%2F5+