Question

The p/q form of -20.7(bar on 7).​

Answer 1

Answer:

$let \: x = 20.77-----eq \: 1$

$mutiply \: both \: sides \: by \: 10$

$10 \times x = 20.777 \times 10$

$10x = 27.777-----eq \: 2$

$now \: subtract \: eq \: 1 \: from \: eq \: 2$

$10x - x = 27.777 - 20.777$

$9x = 7$

$\\x = \frac{7}{9}$

Answer 2

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