Write each mixed number as a decimal.
- 7
4
5 20.^15
1
2 21.^28
3
5 22.^12
5
8 23.^7 1
3
00
- 9 10400 25. 11 530 26. 80 ^34 27. 44 ^1210 28. 61 ^18
Shortcut for Renaming Fractions
Write ^1225 as a decimal.
When a fraction has a denominator that is
a factor of 10, 100, 1000,... :
Rename as an equivalent fraction 1
2
2
5
4
4
1
4
0
8
0
with a denominator that is a power of ten.
Read the fraction. Then write 1
4
0
8
0 0.48
the decimal.
forty-eight hundredths
So
1
2
2
5 0.48.
Think
25 is a factor
of 100.
Write each fraction or mixed number as a decimal.
Use the shortcut whenever possible.
- 2
3
0
30.
2
7
5
31. 7
1
9
0
32. 8
1
3
0
33.^3
5
2
0
1
2
1
5 35. 1
5
6 36.
2
3
5
2 37.^9
1
2
2
0 38.^10 2
3
5
Write each answer as a decimal.
- Ann has nine tenths of a dollar. 40. Allan has three fifths of a dollar.
How much money does she have? How much money does he have? - Roy has one and three fourths 42. Drew has three and two fifths
dollars. How much more money dollars and Rita has four and
does he need to have $3.25? one fourth dollars. How much
more money does Rita have?
8206-2_202-203 1/12/06 3:51 PM Page 203