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Solving 4th grade math problem on page 39 of VBT workbook, Volume 2, Subtracting fractions, problem 118 providing detailed solutions and instructions for exercises 1, 2, 3, 4 in the exercise book based on the curriculum. Students can refer to understand how to solve, apply subtracting fractions to solve exercises.
Solving 4th grade math problem on page 39 of VBT workbook, Volume 2, Subtracting fractions, problem 118
1. Solve exercise 1 - Math exercise book grade 4 volume 2 page 39
Problem:
Calculate:
Solution Method
To subtract two fractions with the same denominator, subtract the numerator of the first fraction from the numerator of the second fraction and keep the denominator unchanged. If the resulting fraction can be simplified, simplify it to its simplest form.
Answer
2. Solve Exercise 2 - Math Exercise Book Grade 4 Volume 2 Page 39
Problem:
Simplify then calculate:
Solution Method
- Simplify the fractions to their simplest form (if possible), then perform subtraction between the two fractions.
- To subtract two fractions with the same denominator, subtract the numerator of the first fraction from the numerator of the second fraction and keep the denominator unchanged.
Answer
3. Solve Exercise 3 - Math Exercise Book Grade 4 Volume 2 Page 39
Problem:
Calculate then simplify:
Solution Method
To subtract two fractions with the same denominator, subtract the numerator of the first fraction from the numerator of the second fraction and keep the denominator unchanged. If the resulting fraction can be simplified, simplify it to its simplest form.
Answer
4. Solve Exercise 4 - Math Exercise Book Grade 4 Volume 2 Page 39
Problem:
In response to the vaccination campaign for children, on the first day in Hoa Binh commune, 8 out of 23 children went for vaccination, and on the second day, 11 out of 23 children went for vaccination. How many more children went for vaccination on the second day compared to the first day, as a fraction of all children in the commune?
Solution Method
The number of children who went for vaccination on the second day more than on the first day = the number of children who went for vaccination on the second day - the number of children who went for vaccination on the first day.
Answer
The number of children who went for vaccination on the second day more than on the first day is:
11/23 - 8/23 = 3/23 (children)
Answer: 3/23 children
You are watching the guide for solving 4th grade math problem on page 39 of VBT workbook, Volume 2, Subtracting fractions, problem 118. You can review the guide for solving 4th grade math problem on page 38 of VBT workbook, Volume 2 Practice or preview the guide for solving 4th grade math problem on page 40 of VBT workbook, Volume 2 Subtracting fractions (next) to understand more about the lesson.
Best wishes for your math studies!
