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A mixed number is made up of two parts: an integer (whole) part and a fractional part.
Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.
Fractional exponents follow the same rules as integral exponents. Integral exponents are numbers raised to an integer power.
To write 2.77 billion in number form, you would express it as 2,770,000,000. This is done by placing the digits in the appropriate positions, with 2 followed by 9 zeros, and adding the decimal portion for the fractional part.