$33 c m$ to $1 m 21 c m$
$= 33 c m$ to $c m$
or $33 :$
Lowest form $=$ __

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Solution

Convert $1 m 21 c m$ into $c m$
We know that
$1 m = 100 c m$
$1 m 21 c m = 100 c m + 21 c m = 121 c m$
Therefore, $33 c m t o 121 c m$
$33 c m t o 121 c m$ $= 33 : 121$
Lowest form of $= 33 : 121$ $= \frac{33}{121} = \frac{3}{11}$ ( Divided by HCF of $33 a n d 121$ which equals to $11$ )
Hence, lowest form of $= 33 : 121$ $= 3 : 11$

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33cm to 1m21cm=33cm to ______ cmor 33:______Lowest form =______

Convert 1m21cm into cmWe know that 1m=100cm1m21cm=100cm+21cm=121cmTherefore, 33cmto121cm33cmto121cm=33:121Lowest form of =33:121=33121=311 ( Divided by HCF of 33and121 which equals to 11)Hence, lowest form of =33:121=3:11

$33 c m$ to $1 m 21 c m$
$= 33 c m$ to $c m$
or $33 :$
Lowest form $=$ __