A school was having spring cleaning 
In the first day, Green Team cleaned 3/8 of a classroom and Blue Team did 10 times of what Green Team did.
How many classroom did the 2 teams clean in the first day?

Let's break down the problem step by step:

1. **Green Team's work:**  
   The Green Team cleaned \(\frac{3}{8}\) of a classroom.

2. **Blue Team's work:**  
   The Blue Team cleaned 10 times what the Green Team did, which means:
   \[
   \text{Blue Team's work} = 10 \times \frac{3}{8} = \frac{30}{8} = \frac{15}{4} \text{ classrooms}
   \]

3. **Total work done by both teams:**  
   To find the total number of classrooms cleaned by both teams on the first day, we add the portions cleaned by each team:
   \[
   \text{Total classrooms cleaned} = \frac{3}{8} + \frac{15}{4}
   \]

   To add these fractions, we need a common denominator. The least common denominator (LCD) of 8 and 4 is 8, so:
   \[
   \frac{15}{4} = \frac{15 \times 2}{4 \times 2} = \frac{30}{8}
   \]
   Now we can add the fractions:
   \[
   \text{Total classrooms cleaned} = \frac{3}{8} + \frac{30}{8} = \frac{33}{8}
   \]

4. **Simplifying the fraction:**
   \[
   \frac{33}{8} \text{ can be written as } 4 \frac{1}{8} \text{ classrooms.}
   \]

So, the two teams together cleaned a total of \( \frac{33}{8} \) classrooms or \( 4 \frac{1}{8} \) classrooms on the first day.

Would you like more details or have any questions? 

Here are some related questions you might find interesting:
1. How many classrooms did the Blue Team clean individually?
2. If the Green Team had cleaned \(\frac{1}{4}\) of a classroom instead, how many classrooms would the teams have cleaned together?
3. What is the difference in the amount of work done by the Green and Blue Teams?
4. If another team joined and cleaned the remaining fraction of a classroom, how much would that be?
5. How many classrooms would the teams have cleaned if the Blue Team only did 5 times what the Green Team did?

**Tip:** When dealing with fractions in word problems, converting all parts to the same denominator makes calculations much easier.

Learn how to calculate the total classrooms cleaned by the Green and Blue Teams on the first day of spring cleaning. Understand fractions and addition of fractions in this problem-solving scenario. Suitable for students in Grades 4-6.

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