find the rational number which when multiplied by 3/7sq. give the product 81/343

Question

_{find the rational number which when multiplied by} 3/7² give the product 31/343

Answer 1

3/(7²) is simply equal to 3/49

 

Write an equation:

 

(3/49)x = 81/343

 

Multiply times the reciprocal to solve for x find the answer.  You will probably have to reduce at the end.