My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems.
1. 2/3+2/9=
2. 3/5+3/10=
3. 5/12+1/3=
4. Find the sum of 1/6 and 1/12
5. Add 1/4 to the answer in Exercise 4.
6. What is the sum of 1/8, 1/4, and 3/8?
7. Add 1/3, 3/12, and 5/12.
He needs to change one of each pair of fractions so that they have a common denominator.
2/3 + 2/9
Then add the numerators.
6/9 + 2/9 = 8/9
You can both study this site.
http://www.mathsisfun.com/fractions_addition.html
I'll be glad to check his answers for the rest of the problems.
What is the answer in words for 71.209
I'd be happy to help your son with these math problems! Let's go through each one step by step.
1. To add 2/3 and 2/9, we need to find a common denominator. The smallest number that both 3 and 9 can divide evenly into is 9.
To convert 2/3 to have a denominator of 9, we multiply both the numerator and denominator by 3. This gives us 6/9.
The sum of 6/9 and 2/9 is 8/9.
2. Similar to the previous problem, we need to find a common denominator for 3/5 and 3/10. The smallest number both 5 and 10 can divide evenly into is 10.
To convert 3/5 to have a denominator of 10, we multiply both the numerator and denominator by 2. This gives us 6/10.
The sum of 6/10 and 3/10 is 9/10.
3. Again, we need to find a common denominator for 5/12 and 1/3. The smallest number both 12 and 3 can divide evenly into is 12.
To convert 5/12 to have a denominator of 12, we multiply both the numerator and denominator by 1. This gives us 5/12.
The sum of 5/12 and 1/3 is 8/12, which can be simplified to 2/3.
4. To find the sum of 1/6 and 1/12, we need to find a common denominator. The smallest number both 6 and 12 can divide evenly into is 12.
To convert 1/6 to have a denominator of 12, we multiply both the numerator and denominator by 2. This gives us 2/12.
The sum of 2/12 and 1/12 is 3/12, which can be simplified to 1/4.
5. To add 1/4 to the answer in Exercise 4 (which is 1/4), we need to find a common denominator. Both 4 and 4 already have the same denominator.
The sum of 1/4 and 1/4 is 2/4, which can be simplified to 1/2.
6. To find the sum of 1/8, 1/4, and 3/8, we simply add the numerators and keep the denominator the same.
The sum is 5/8.
7. To add 1/3, 3/12, and 5/12, we first need to find a common denominator. The smallest number both 3, 12, and 12 can divide evenly into is 12.
To convert 1/3 to have a denominator of 12, we multiply both the numerator and denominator by 4. This gives us 4/12.
The sum of 4/12, 3/12, and 5/12 is 12/12, which is equal to 1.
I hope these explanations help your son understand how to solve these math problems! Let me know if you have any more questions.