How do you express fractions and ratios in numerals?

To express fractions and ratios in numerals, we use a combination of numbers and symbols.

For fractions, we typically use the format "numerator/denominator" or "numerator over denominator." The numerator represents the number of parts we have, while the denominator represents the total number of equal parts that make up a whole. For example, the fraction 3/4 means we have 3 out of 4 equal parts.

In ratios, we use the format "a:b" or "a to b" to compare two quantities. The number before the colon (a) represents the first quantity, while the number after the colon (b) represents the second quantity. For example, a ratio of 2:5 means that the first quantity is 2 and the second quantity is 5.

It's important to note that fractions and ratios can also be expressed as decimals or percentages. Fractions can be converted to decimals by dividing the numerator by the denominator, while ratios can be converted to decimals by dividing the first quantity by the second quantity. To convert decimals to percentages, we multiply by 100 and add the percentage symbol (%).

In summary, fractions and ratios can be expressed in numerals using the "numerator/denominator" format for fractions and the "a:b" format for ratios. They can also be converted to decimals or percentages if needed.