Math Operations
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Math Operations
Operations with Parentheses
Perform multiplications and divisions first, then additions and subtractions. When simplifying fractions, the greatest common divisor should be used to reduce both the numerator and the denominator.
Expressing Fractions as Decimals
When the decimal is purely periodic (e.g., n = 235.2): The numerator is the number without the decimal point minus the non-periodic part, and the denominator is as many 9s as there are figures in the period.
When the decimal is mixed periodic (e.g., 1.372): The numerator is the number without the decimal point minus the non-periodic part. The denominator consists of as many 9s as there are periodic figures followed by as many 0s as there are non-periodic figures after the decimal... Continue reading "Math Operations" »