Answer: [tex]\frac{12ch}{a}[/tex]
This is the same as writing (12ch)/a
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Explanation:
When multiplying fractions, we multiply the numerators together separately from the denominators.
[tex]\frac{21c^2}{a}\times \frac{4h}{7c} = \frac{21c^2*4h}{a* 7c}[/tex]
Then notice the 21 over 7 reduces to 3.
Also, simplifying the c^2 over c part leads to c
Nothing else cancels.
We're left with this: [tex]\frac{3c*4h}{a} = \frac{12ch}{a}[/tex]
