Question

The product of two rational numbet is -14/15.if one the number is 2/9, find the other

Answer 1

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let the numbers are A and B

A×B = -14/15

A = 2/9

B = (-14/15)/(2/9) = -14/15  ×  9/2 = (-14×9)/(15×2) = (-7×3)/(5) = -21/5

other number is -21/5

Answer 2

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→ product of two rational number is -14/15

→ if one number is 2/9

→ let other number be x

→ x×2/9= -14/15

→ 2x/9 = -14/15

→ 2x = -14/15 ×9

→ 2x = -126×15

→ x = -21/5