Answer:
80 cm as a fraction of 4 m is [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
To write the fraction of two different quantities you must put them in the same units
Example: To write 5 grams as a fraction of 1 kilogram
Let us use the same way to solve the question
∵ 1 meter = 100 centimeters
∴ 4 meters = 4 × 100 = 400 centimeters
→ Now put 80 centimeters as a numerator and 400 centimeters as
a denominator
∵ The fraction is [tex]\frac{80}{400}[/tex]
→ Divide up and down by 80 to simplify it
∴ The fraction = [tex]\frac{\frac{80}{80}}{\frac{400}{80}}[/tex]
∵ 80 ÷ 80 = 1
∵ 400 ÷ 80 = 5
∴ The fraction in its simplest form = [tex]\frac{1}{5}[/tex]
∴ 80 cm as a fraction of 4 m is [tex]\frac{1}{5}[/tex]