Question

Express -42by98 as a rational number with denominator 7
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Answer 1

Answer:

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$\frac{ - 42}{98} = \frac{x}{7} \\ - 42 \times 7 = 98x \\ x = \frac{ - 42 \times 7}{98} \\ x = \frac{ - 42}{14} \\ x = - 3$

therefore its -3/7