Question
$4.7 ÷ 1000 =$ _____.

Answer

Given, $47+100=\frac{47}{1000}\times\frac{1}{100}$
$\big[\because\text{reciprocal of}\ 100=\frac{1}{1000}\big]$
$=\frac{47}{10000}=0.0047$
Hence, $4.7+1000=0.0047$

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