The predecessor of the number 6,573,800 as given in the task content is; 6,537,799.
<h3>What is the predecessor of the number?</h3>
From the contextual meaning of the word, predecessor, it follows that it means to.find the number right before 6,573,800.
On this note, upon counting of integers, the predecessor of the number 6,573,800 is 6,573,799.
Read more on integers;
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Do number 11 in your own way.
(((x + y) / 3) + (1 / x)) / (5 + (15 / x))
The best way is to make it one fraction.
Multiply by ((3x/3x) / (3x/3x)) to remove the other fractions.
((x(x + y)) + 3(1)) / (5(3x) + 3(15))
(x^2 + xy + 3) / (15x + 45)
Then factor to simplify
(x^2 + xy + 3) / (3(x + 15))
Option 4 would be the correct answer
5/9 or 0.5 recurring
hope this helps :)