0.8
Since percent means "of 100", you know that 45/100 is equal to 45 percent. Expressed as a decimal, 45/100 is equal to 0.45.
Expressed as a decimal, 3/45 is equal to 0.06 recurring (that is, 0.06666...)
Expressed as a decimal, 1/45 is equal to 0.02 recurring (that is, 0.02222...)
Expressed as a decimal, 8/45 is equal to 0.17 recurring (that is, 0.17777..)
2/45 is equal to 0.044444 . . .
Expressed as a decimal, this is equal to 0.8
To write -45 as a decimal, you simply write "-45.0" or "-45.00" to indicate the number includes a whole number and decimal point. The decimal form of -45 represents the same value as the integer -45, but with a decimal point to show its position on the number line. The negative sign indicates that the number is less than zero.
45 = 101101
4.5
The first number (01001101) is equal to the decimal number 77. The second number (00100010) is equal to the decimal number 34. If you add the two together in decimal, you get 111. Expressed as a binary number, 111 is equal to 01101111.
17.2
There is only one number that equals 45.That number is: 45