2/5 multiply times 2(because .1=1/10). that equals 4/10 in decimal form that is .4(again, because .1=1/10).
0.5 = 1/2
same as 1/10 = .1
You can, but only if the decimal is 1.0+. okay, say your decimal is 1.2, then you put the 2 over 10 and keep the one as a whole so it looks like 1 2/10 or 1 1/5
1/5 = 2/10 = 0.2
2/20 = 1/10 = .1
2 and 1/100 = 2.01
1.2
.10 or .1 you move the decimal 2 places to the left
2/5 multiply times 2(because .1=1/10). that equals 4/10 in decimal form that is .4(again, because .1=1/10).
2.1 = 2 1/10
1/10 * 2/10 = 2/100 = 0.02
10.5
It is very easy. 20 out of 100 simplified is 1/5. 1/5 is the same as 2/10. 2/10 in decimal form is .2.
In the decimal (base-10) system, 2 is. In the binary (base-2) system, 10 is.
0.5 = 1/2
2 decimal, or 10 binary.