Find the LCM of the following:
1) 12 and 13
2) 14 and 21
3) 15, 5 and 20
4) 35 and 20
5) 9, 16 and 24
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Find the LCM of the following:
1) 12 and 13
2) 14 and 21
3) 15, 5 and 20
4) 35 and 20
5) 9, 16 and 24
show your solution
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Answer:
1. 156
2. 42
3. 60
4. 140
5. 144
Step-by-step explanation:
1. Multiples of 12:
12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180
Multiples of 13:
13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, 169, 182
2. Multiples of 14:
14, 28, 42, 56, 70
Multiples of 21:
21, 42, 63, 84
3. Multiples of 5:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70
Multiples of 15:
15, 30, 45, 60, 75, 90
Multiples of 20:
20, 40, 60, 80, 100
4. Multiples of 20:
20, 40, 60, 80, 100, 120, 140, 160, 180
Multiples of 35:
35, 70, 105, 140, 175, 210
5. Multiples of 9:
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162
Multiples of 16:
16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176
Multiples of 24:
24, 48, 72, 96, 120, 144, 168, 192