21.5%

Convert the percentage to a fraction by placing the expression over 100. Percentage means ‘out of 100’.

21.5100

Convert the decimal number to a fraction by shifting the decimal point in both the numerator and denominator. Since there is 1 number to the right of the decimal point, move the decimal point 1 place to the right.

2151000

Factor 5 out of 215.

5(43)1000

Cancel the common factors.

Factor 5 out of 1000.

5⋅435⋅200

Cancel the common factor.

5⋅435⋅200

Rewrite the expression.

43200

43200

43200

Convert to a Fraction 21.5%