Not entirely sure what you mean; but 45 is equal to 45, and to no other number.
It's not the same. .45 LC (long colt) and .45 Mag are not the same.
45% is the same as .45 and 45/100 (this can be simplified to 9/20)
A set of five numbers, the second to fifth of which are the same.
To find out how many fives are the same as 45, you can divide 45 by 5. Doing the calculation, 45 ÷ 5 equals 9. Therefore, there are nine fives in 45.
45+45+45 = 135
-137-45 = -182 (-137 - 45) is the same as (-137 + -45), which is the same as -(137+45)
The number 45 is the same as 45/1, therefore you can change 45 to a fraction of 45/1.
.45 auto and .45ACP are the same round.
0.7 is larger than .45 which is the same as 0.45
it is the same.
45
20% is the same as 0.20 and 0.20*45 = 9