Fractions and Decimals Review

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What is a decimal?

Back

A decimal is a way of expressing numbers that are not whole, using a point to separate the whole number part from the fractional part, e.g., 0.75.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

What is the process to convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator. For example, 1/4 = 1 ÷ 4 = 0.25.

Front

What is the process to convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify.

Front

How do you compare two decimals?

Back

To compare two decimals, align the decimal points and compare digit by digit from left to right.

Front

What does rounding a number mean?

Back

Rounding a number means adjusting it to a nearby specified value, often to make it simpler or to fit a certain level of precision.

Front

How do you round a number to the nearest hundredths place?

Back

To round to the nearest hundredths place, look at the digit in the thousandths place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the sum of 1/5 and 3/5?

Back

1/5 + 3/5 = 4/5.