how to write 242 over 100 in decimal notation
.455
.7 (repeating)
you dont! it doesnt go to a decimal stupid!
416/1000 = 0.416
That is 0.2
That is 0.001
When you have a repeting decimal, such as 0.66666666... That will become 0.6 with the bar notation over the 6. Or, if it is a decimal such as 0.123123123... you would just put the bar notation over the 123.
You divide 346 by 1,000 and get .346.
To do scientific notation, all you have to do is take the decimal and move it over until you only have one number in front of it, then write x10^the number of spaces the decimal moved. For example 630,000 would be 6.3x10^5 because you moved the decimal over 5 times.
19 over 6 in decimal notation is 3.167
The decimal notation for 113 over 400 is 0.2825