1.2 Fractions, Decimals, and Percentages

• Fractions consist of a numerator and a denominator
• Decimals use a decimal point to separate the whole number part from the fractional part.
• Percentages express a fraction or decimal as a proportion out of 100
• The fraction 3/4 means three parts out of four.
• Match the fraction with its decimal equivalent:

  1/2 ↔️ 0.5

  1/4 ↔️ 0.25

  3/5 ↔️ 0.6
• Steps to convert a decimal to a fraction:

  1️⃣ Write the decimal as a fraction with a denominator that is a power of 10

  2️⃣ Simplify the fraction if possible
• To convert a fraction to a percentage, multiply the fraction by 100%
• To convert a percentage to a fraction, divide the percentage value by 100.
• To convert a fraction to a decimal, divide the numerator by the denominator
• How do you convert a fraction to a decimal?

  Divide numerator by denominator
• To convert 3/4 to a decimal, you divide 3 by 4
• 1/4 converted to a decimal is 0.25.
• What is 3/5 as a decimal?

  0.6
• Match the fraction with its decimal equivalent:

  1/2 ↔️ 0.5

  1/4 ↔️ 0.25

  3/5 ↔️ 0.6
• Steps to convert a decimal to a fraction

  1️⃣ Write the decimal as a fraction with a denominator that is a power of 10

  2️⃣ Simplify the fraction if possible
• What is 0.25 as a simplified fraction?

  1/4
• 0.5 is equivalent to the simplified fraction 1/2
• 0.75 is equal to 3/4 as a simplified fraction.
• What power of 10 should you use as the denominator for 0.25?

  100
• When converting a decimal to a fraction, you should always simplify the fraction to its simplest form
• To convert a fraction to a percentage, you divide the numerator by the denominator and multiply by 100%.
• What is 3/4 as a percentage?

  75%
• When converting a fraction to a percentage, you must multiply the result by 100
• To convert a fraction to a percentage, you divide the numerator by the denominator and multiply by 100%.
• Match the fraction with its equivalent percentage:

  1/2 ↔️ 50%

  1/4 ↔️ 25%

  3/5 ↔️ 60%
• How do you convert a percentage to a fraction?

  Divide by 100 and simplify
• 25% is equivalent to the simplified fraction 1/4
• 50% converted to a simplified fraction is 1/2.
• What is 75% as a simplified fraction?

  3/4
• To convert a decimal to a percentage, you multiply by 100%.
• What is 0.75 as a percentage?

  75%
• When converting a decimal to a percentage, you must multiply by 100
• Match the decimal with its equivalent percentage:

  0.75 ↔️ 75%

  0.5 ↔️ 50%

  0.25 ↔️ 25%
• To convert a percentage to a decimal, you divide by 100.
• What is 25% as a decimal?

  0.25
• When converting a percentage to a decimal, you must divide by 100
• Match the percentage with its equivalent decimal:

  25% ↔️ 0.25

  50% ↔️ 0.50

  75% ↔️ 0.75

  100% ↔️ 1.00
• What is a fraction made of?

  Numerator and denominator
• A decimal uses a decimal point to separate the whole number part from the fractional part.
• A percentage expresses a fraction or decimal as a proportion out of 100