to convert any decimal to a fraction, we simply use "as many zeros on the denominator as there are decimals, and lose the dot above", so 4.875 has three decimals, so let's put three zeros below it then.
To solve hg = 45g
Apply Multiplication Property of Equality which is to multiply both sides of the equation with 1/g.
hg (1/g) = 45g (1/g)
h = 45
Or you can divide both sides with the equation with g.
hg / g = 45g / g
You can cancel g to both sides.
Then,
h = 45
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