It is: 4/3 because as for example 4 divided by 3/4 = 16/3
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no you just guess the answer by not adding subtracting multiplying or dividing. Just take a guess you think the answer might be.
As A=(lh)/2, it's just a bit of substitution, multiplying and dividing to get the area.
multiplying rational expressions means multiplying two alg. rxpressions that look like fractions, Just like normal, multiply numerators and multiply denominators then reduce. Division, just like regular fractions means to invert the divisor and the multiply (as above)
Well, darling, three fourths of 189.40 is 141.75. Simple math, just divide 189.40 by 4 and then multiply the result by 3. Voilà, you've got your answer. Math doesn't have to be a headache, honey!
Just go; 3/(4x12) = 3/48 = 0.0625 or 1/16