Fractions, decimals and percentage calculations A fraction is a part of a whole divided into equal parts. For example, 1/3 of a cake is the part that is...
A fraction is a part of a whole divided into equal parts. For example, 1/3 of a cake is the part that is eaten, while 2/5 of a shirt is the part that is visible.
A decimal is a number that can be written with a finite number of digits, such as 0.5 or 0.75. Unlike fractions, decimals can be divided into equal parts.
A percentage is a measure of a part of a whole that is expressed as a number between 0 and 100. For example, 50% of a student earned a passing grade, which means that 50% of the students got the grade.
Here are some additional key points about fractions, decimals and percentages:
Equivalent Fractions: Fractions with the same numerator and denominator are equivalent, meaning they represent the same amount. For example, 1/2 = 2/4 = 4/8.
Adding and subtracting fractions: To add or subtract fractions with the same denominators, we add or subtract the numerators and keep the denominator the same. For example, 1/3 + 2/3 = 3/3 = 1.
Adding and subtracting decimals: To add or subtract decimals, we first convert them to equivalent fractions with the same denominator. Then, we add or subtract the numerators and keep the denominator the same. For example, 0.5 + 0.2 = 0.7.
Adding and subtracting percentages: To add or subtract percentages, we convert them to equivalent fractions with the same denominator. Then, we add or subtract the numerators and keep the denominator the same. For example, 50% + 20% = 70%.
Practicing these concepts through problems is the best way to improve your understanding and become comfortable working with fractions, decimals and percentages