5 rational numbers between 10/15 and 12/15
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/find-10-rational-numbers-between-3-4-and-4-6-using-mean-meth/rational-numbers/7507127
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https://www.meritnation.com/ask-answer/question/find-10-rational-numbers-between-3-4-and-4-6-using-mean-meth/rational-numbers/7507127
Regards