Buzz
Solve Grade 4 Math on pages 24 and 25 of VBT Book 2, Practice, Exercise 105 according to the content, closely aligning with the curriculum. This helps students easily visualize how to solve exercises 1, 2, 3 as well as easily grasp and practice how to equate the denominators of fractions.
Solving fourth-grade math on pages 24 and 25 of VBT Book 2, Practice, Exercise 105
1. Solve Exercise 1 - Grade 4 Math Exercise Book 2 Page 24
Problem Statement:
Find a common denominator for two fractions
a) 5/8 and 8/5
b) 7/9 and 19/45
c) 8/11 and 3/4
d) 17/72 and 5/12
Solution Method
When finding a common denominator for two fractions, you can follow these steps:
- Multiply the numerator and denominator of the first fraction by the denominator of the second fraction.
- Multiply the numerator and denominator of the second fraction by the denominator of the first fraction.
Answer
2. Solve Exercise 2 - Grade 4 Math Exercise Book 2 Page 25
Problem Statement:
Find a common denominator for fractions (according to the denominator):
a) 1/2; 2/5; and 4/7
b) 3/2; 2/3; and 5/7
Solution Method
When finding a common denominator for three fractions, you can follow these steps:
- Multiply the numerator and denominator of the first fraction by the product of the denominators of the second and third fractions.
- Multiply the numerator and denominator of the second fraction by the product of the denominators of the first and third fractions.
- Multiply the numerator and denominator of the third fraction by the product of the denominators of the first and second fractions.
Answer
3. Solve Exercise 3 - Grade 4 Math Exercise Book 2 Page 25
Problem Statement:
Calculate (according to the denominator):
Solution Method
Analyze the numerator and denominator into the product of their prime factors, then divide the products in the numerator and denominator by their common factors successively.
Answer
You are currently viewing the guidance on solving fourth-grade math on pages 24 and 25 of VBT Book 2, Practice, Exercise 105. You can review the instructions for solving fourth-grade math on pages 23, 24 of VBT Book 2 Finding a common denominator for fractions (continued) or preview the guidance for solving fourth-grade math on page 26 of VBT Book 2 Practice to better understand the lesson.
Wishing you all success in your math studies.
