Step-by-step explanation:

[tex] \text{Ratio} = \frac{1200 \text{ g}}{840 \text{ g}} \][/tex]

To simplify the ratio, you can divide both the numerator and denominator by their greatest common factor,

[tex] = \frac{1200 \div 120 \text{ g}}{840 \div 120 \text{ g}} \]

[/tex]

[tex]= \frac{10}{7} \][/tex]

So, the simplified ratio between 1.2 kg and 840 grams is

[tex]\frac{10}{7} [/tex]

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Answer:

first we convert in grams

rhen 1.2×1000=1200g

then ratio=

1200/840

=10:7