Multiplication of Decimal Fractions

In this class, We discuss the Multiplication of Decimal Fractions.

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Example 1:

0.2 * 0.02 * 0.002

Multiply the numbers without considering decimal points.

2 * 2 * 2 = 8

0.2 after the decimal point, one digit

0.02 after decimal point two digits

0.002 after decimal point three digits

1+ 2 + 3 = 6.

We need to place six digits after the decimal point in the result.

The result is 8.

= 0.000008

Example 2:

2.61 * 1.3

261 * 13 = 3393

one digit after the decimal point in 1.3

two digits after the decimal point in 2.61

Place decimal point after three digits in the result

= 3.393

Example 3:

0.4 * 0.04 * 0.004 * 40.

4 * 4 * 4 * 40 = 2560

one digit after the decimal point in 0.4

two digits after the decimal point in 0.04

three digits after the decimal point in 0.004

zero digits after the decimal point in 40.

1 + 2 + 3 + 0 = 6

Place the decimal point after six digits from the left in the result.

= 0.002560