Question

$450ml$ to $2litres$

$=450ml$ to ______ $ml$

or $450:$______

Lowest form $=$______

Answer 1

Convert $2litres$ into $ml$

We know that

$1litre=1000ml$

$2litres=2\times 1000ml=2000ml$

Therefore, $450mlto2000ml$

$450mlto2000ml$$=450:2000$

Lowest form of $=450:2000$$=\frac{450}{2000}=\frac{9}{40}$ ( Divided by HCF of $450and2000$ which equals to $50$)

Hence, lowest form of $=450:2000$$=9:40$