The Meaning Of // and %

Question

i don't understand what operations are made when i use // and % in numeric operations
for example , when i do 1.25 % 0.5 what happened so the answer is 0.25 ??

Answer 1

\ gives exact value of divide.
9\2=4.5

but \\ use for floor division.
9\\2
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2| 9 |4
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8
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1

answer is 4 and here remainder is 1 which can find like this.
9%2=1