Math 7th grade Fractions decimals percentages Percent word problems. 70 of 30 is 21. As a percentage it is.
Thirty is 150 of 20.
Were trying to find the missing PERCENT out of the whole 100. The formulas for calculating percentages or for converting from percentages are relatively simple. Since the statement is thirty is some percentage of twenty then the variable stands for the percentage and the equation is. To convert a fraction or decimal to a percentage multiply by 100.