Question 6 of 18advanced🔍 AnalyzeShort Answer2 marks

Write down the numbers common to the skips of fives and sevens?

Correct Answer

Step 1: Find LCM of 5 and 7 Since 5 and 7 are both prime numbers, their LCM = 5×75 \times 7 = 35

Step 2: List multiples of 35 within 1-100 Multiples of 35: 35 and 70

Answer: The numbers common to skip counting in fives and sevens are 35 and 70.

Exercise: Let us Do | Q: D | (Page Page 4)
For More Understanding

Explanation

To find numbers common to skip counting by 5 and 7, students find multiples of the LCM of 5 and 7. Since 5 and 7 are both prime numbers, their LCM is 5×75 \times 7 = 35. Within 1-100, the multiples of 35 are 35 and 70.

Solution Steps

  1. Step 1: Find LCM of 5 and 7 = 35

  2. Step 2: List multiples of 35 within 1-100

  3. Step 3: The numbers are 35 and 70

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