The simplest way is to multiply it by 10. 4.2 * 10 = 42.
There are an endless number of ways to do it however.
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When rounding 42 to the nearest whole number, you look at the digit in the tenths place, which is 2. Since 2 is less than 5, you round down. Therefore, 42 rounded to the nearest whole number is 42.
To convert the fraction 42/6 to a mixed number, you need to divide 42 by 6. The quotient is 7, which represents the whole number part of the mixed number. The remainder is 0, indicating that the fraction is a whole number. Therefore, 42/6 as a mixed number is simply 7.
To turn a whole number into a percentage: Simply multiply it by 100%.
Of course it is !
Multiply the whole number to 100%.