Decimal-Percent
What is the general rule for converting a decimal into a percent?
Multiply by 100 or move the decimal two places to the right.
What is the general rule for converting a percent into a decimal?
Divide by 100 or move the decimal two places to the left.
When in doubt, what is a general rule for converting a fraction into a decimal?
Divide
What is a general rule for converting a decimal into a fraction?
Put the decimal digits over their place value (tenths, hundredths, thousandths, etc.)
30%
30/100 or 3/10
0.26
26%
55%
0.55
20/100
0.20 or just 0.2
0.13
13/100
50%
50/100, 5/10, or 1/2
0.875
87.5%
193%
1.93
3/4
0.75
0.85
85/100
89%
89/100
1.63
163%
7%
0.07
1/8
0.125
0.4
4/10
17%
17/100
0.065
6.5%
34.7%
0.347
1/9
0.1 repeating
0.154
154/1,000
15%
15/100 or 3/20