Decimals
to fractions
Expanded
form
fraction to
decimal
multiply
x10
multiply
x100, x1,000
100

2.8

2 8/10 = 2 4/5

100

0.4 + 0.02 +0.005

0.425

100

9/1000

0.009

100

0.2x10

2

100

32.45x100

3,245

200

1.405

1 405/1000 = 1 81/200

200

2+0.3+0.002

2.302

200

45/1000

0.045

200

0.002x10

0.02

200

0.002x100

0.2

300

0.005

5/1000 = 1/200

300

31.008

30+1+0.008

300

1 708/1000

1.708

300

3.245x10

32.45

300

568.98x1,000

56,980

400

1.405

1 405/1000 =1 81/200

400

403.062

400+3+0.06+0.002

400

4 58/1000

4.058

400

324.5x10

3,245

400

98.1x1,000

98,100

500

first figure out the decimal . then figure out the fraction. 

2+0.1+0.003 

2 103/1000=2.103 

500

7.035

7+0.03+0.005

500

300/1000

0.300=0.3

500

568.12x10

5,681.2

500

78.12x1,000

78,120