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$7m$ $3cm=.....cm$

$7m=700cm$

$700cm+3cm=703cm$

$⇒$ $7m$ $3cm=703cm$

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$6m$ $3cm.....630m$

$6m=600cm$

$600cm+3cm=603cm$

$630m=63000cm$

$603cm<63000cm$

$⇒$ $6m$ $3cm<630m$

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$4m$ $7dm.....47dm$

$4m=40dm$

$40dm+7dm=47dm$

$47dm=47dm$

$⇒$ $4m$ $7dm=47dm$

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$4hm=.....m$

$1hm=100m$

$100m×4=400m$

$⇒$ $4hm=400m$

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$\dfrac{1}{4}$ của $248kg$ là:

$248:4=62$ $(kg)$

$⇒$ $\dfrac{1}{4}$ của $248kg$ là: $62kg$

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$\dfrac{1}{6}$ của $762m$ là:

$762:6=127$ $(m)$

$⇒$ $\dfrac{1}{6}$ của $762m$ là: $127m$

$@Lie$