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.
To determine what power of 10 you will need,
count the number of digits behind each decimal point.
1.28 ← Two digits behind the decimal point
4.6 ←
One digit behind the decimal point
You will need to use 102 = 100.
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Mathematician
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