write first three common multiples of 9 and 11
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1
Answer:
LCM of 9 and 11 is the smallest number among all common multiples of 9 and 11. The first few multiples of 9 and 11 are (9, 18, 27, 36, 45, 54, . . . ) and (11, 22, 33, 44, 55, . . . ) respectively.
- Step-by-step explanation:
Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 9 and 11. Write this prime number(3) on the left of the given numbers(9 and 11), separated as per the ladder arrangement.
Step 2: If any of the given numbers (9, 11) is a multiple of 3, divide it by 3 and write the quotient below it. Bring down any number that is not divisible by the prime number.
Step 3: Continue the steps until only 1s are left in the last row.
The LCM of 9 and 11 is the product of all prime numbers on the left, i.e. LCM(9, 11) by division method = 3 × 3 × 11 = 99
Answered by
1
Answer:
99,198,297
Step-by-step explanation:
Multiples of 9 : 9,18,27,36,45,54,63,72,81,90,99,108,117,126,135,144,153,162,171,180,189,198, 207,216.225,234,243,252,261,270,279,288,297
Multiples of 11 : 11,22,33,44,55,66,77,88,99,110,121,132,143,154,165,176,187,198,209,220,231, 242,253,264,275,286,297
Hope it helps
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