Question

what should be added to thrice the rational number -5/2 to get 2/7?

Answer 1

Answer:

Step-by-step explanation:

Answer 2

let the required number be x
$3 \times \frac{ - 5}{2} + x = \frac{2}{7} \\ x = \frac{2}{7} + \frac{15}{2} \\ x = \frac{4 + 105}{14} \\ x = \frac{109}{14} \\ x =7 \frac{11}{14}$
therefore the answer is 109/14
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