What is the LCD of 3/7, 3/8, 7/12

when asked about least common denominator, all you need to do is multiply the coeficients of the numerators

3/4....3 is the numerator while 4 is the denominator

in this case

3/7,3/8,7/12......3x3x7=72..........so..the LCD for is 72!

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