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CHAPTER 3 Decimals 59
14 3:55 The product will have two digits following the decimal
point. (The second digit behind the decimal point is 0: 49:70 ¼ 49:7.)
Practice
1. 3:2 1:6 ¼
2. 4:11 2:84 ¼
3. 8 2:5 ¼
4. 0:153 6:8 ¼
5. 0:0351 5:6 ¼
Solutions
1. 3:2 1:6 ¼ 5:12
2. 4:11 2:84 ¼ 11:6724
3. 8 2:5 ¼ 20:0 ¼ 20
4. 0:153 6:8 ¼ 1:0404
5. 0:0351 5:6 ¼ 0:19656
Decimal Fractions
Fractions having a decimal number in their numerator and/or denominator
can be rewritten as fractions without decimal points. Multiply the numerator
and denominator by a power of 10—the same power of 10—large enough so
that the decimal point becomes unnecessary.
1:3 1:3 10 13 1
¼ ¼ ¼
3:9 3:9 10 39 3
