1
All of these numbers are primes.
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That is the HCF or GCF. The LCD is 42
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Example: 1/30 and 1/42Factor them.2 x 3 x 5 = 302 x 3 x 7 = 42Combine the factors, eliminating duplicates.2 x 3 x 5 x 7 = 210, the LCD
Example: 1/30 and 1/42Factor them.2 x 3 x 5 = 302 x 3 x 7 = 42Combine the factors, eliminating duplicates.2 x 3 x 5 x 7 = 210, the LCD
The same as with two.Example: 30, 42, 60Factor them.2 x 3 x 5 = 302 x 3 x 7 = 422 x 2 x 3 x 5 = 60Combine the factors, eliminating duplicates.2 x 2 x 3 x 5 x 7 = 420, the LCD
168
Example: 1/30 and 1/42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCD