Page 74 - MarceAlgebra Demystified

CHAPTER 3 Decimals 61

Solutions

4:58 4:58 100 458
1: ¼ ¼
2:15 2:15 100 215
3:6 3:6 100 360
2: ¼ ¼
18:11 18:11 100 1811
2:123 2:123 1000 2123
3: ¼ ¼
5:6 5:6 1000 5600

8 8 10 80 10
4: ¼ ¼ ¼
2:4 2:4 10 24 3
6:25 6:25 100 625 5
5: ¼ ¼ ¼
5 5 100 500 4
0:31 0:31 100 31
6: ¼ ¼
1:2 1:2 100 120

0:423 0:423 1000 423 141
7: ¼ ¼ ¼
0:6 0:6 1000 600 200

Division with Decimals

We can use the method in the previous section to rewrite decimal division
problems as whole number division problems. Rewrite the division problem
as a fraction, clear the decimal, and then rewrite the fraction as a division
problem without decimal points.

Examples

6:03
1:2 Þ6:03 is another way of writing :
1:2
6:03 6:03 100 603 603
¼ ¼ and becomes 120 Þ603:
1:2 1:2 100 120 120
3:7 3:7 100 370
0:51 Þ3:7 becomes ¼ ¼ which becomes 51 Þ370:
0:51 0:51 100 51