Question 3 of 41beginner🔧 ApplyNumerical2 marks

A Celestial Pearl Danio's length is 2 4/10 cm, and the length of a Philippine Goby is 9/10 cm. What is the difference in their lengths?

Correct Answer

Given: Celestial Pearl Danio length = 2 4/10 cm Philippine Goby length = 9/10 cm

Step 1: Convert mixed number to fraction 2 4/10 = 24/10 cm

Step 2: Subtract 24/10 - 9/10 = 15/10 cm

Step 3: Convert back 15/10 = 1 5/10 = 1.5 cm

Answer: The difference in their lengths is 1 5/10 cm or 1.5 cm.

Exercise: 3.2 A Tenth Part | Q: 5 | (Page Page 7)
For More Understanding

Explanation

Convert 2 4/10 to 24/10 for easier subtraction. Then: 24/10 - 9/10 = 15/10 = 1 5/10 cm. Alternatively, subtract directly: 2 4/10 - 9/10 = 2 4/10 - 0 9/10 = 1 5/10 cm.

Solution Steps

  1. Step 1: Convert mixed number to fraction: 2 4/10 = 24/10 cm

  2. Step 2: Subtract: 24/10 - 9/10 = 15/10 cm

  3. Step 3: Convert back: 15/10 = 1 5/10 = 1.5 cm

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