735
first 15 x 50 = 750
then 750 - 15 = 735
or 45 + 90 + 200 + 400 = 735
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Try: 15 times 49 = 735
49 - 15% = 49 x (1 - (15/100)) = 49 x 0.85 = 41.65
It is because a whole number multiplied by itself does not equal 15. An example of a square number is 49. 7 times 7 equals 49.
15/49 is in its simplest form.
15/49 is the simplest form.