SaiBook.us Fractions

Lesson Example Discussion Quiz: Class Homework

Example

Title: Convert Fraction into Decimal

Grade: 4-a Lesson: S2-L7

Explanation: Hello Students, time to learn examples. Let us take turns and read each example. Explain each step. Pay special attention to steps and pictures and communicate in your own words.

Examples:

Convert \$4 12/5\$ into a decimal number.

Step 1a

The first step to changing \$4 12/5\$ into a decimal is to change it to an improper fraction.

$1a$

Explanation: In this step, change fractions into decimals first, we have to change mixed fractions into improper fractions.

Step 1b

Multiply 4 by 5 and add its product to 12 in the numerator to get: \$(20 + 12)/5 = 32/5\$

$1b$

Explanation: In this step, we need to multiply the denominator(5) with a whole number (4) and add its product to the numerator(12) then we get, \$32/5\$

Step 1c

Convert fractions to decimals using the division method: \$32/5 = 6.4\$

$1c$

Explanation: To obtain a decimal using the division method, divide the numerator, which is 32, by the denominator, which is 5. The result of the division is 6.4.