Evaluate 1.989/6.421*10^7

Convert the fraction to a decimal by dividing the numerator by the denominator.
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The result can be shown in multiple forms.
Scientific Notation:
Expanded Form:
Evaluate 1.989/6.421*10^7

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