Final answer:
To divide decimal fractions, divide the numbers and place the decimal point in the result. To multiply decimal fractions, multiply the numbers and place the decimal point in the result.
Step-by-step explanation:
To divide decimal fractions, divide the numbers and place the decimal point in the result. For example, to divide 0.8 by 0.2:
0.8 ÷ 0.2 = 4
To multiply decimal fractions, multiply the numbers and place the decimal point in the result. For example, to multiply 0.6 by 0.3:
0.6 × 0.3 = 0.18