To convert the mixed number \( 5 \frac{18}{25} \) to a decimal, first convert the fraction \( \frac{18}{25} \) to a decimal.
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Divide 18 by 25: \[ 18 \div 25 = 0.72 \]
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Now, add this decimal to the whole number part (5): \[ 5 + 0.72 = 5.72 \]
So, \( 5 \frac{18}{25} \) as a decimal is 5.72.