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Wiki User
24
28. 1/4 is 7/28 and 1/7 is 4/28
24.
28
28 is the LCD
20
The LCD for 4/7 and 7/8 is 56.
28.
The LCD for 3/4 and 4/7 is 28.
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8
The LCD for 4/7 and 3/5 is 35.
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60
K/3 + k/4 = 1 LCD=12 *divide lcd by denominator* K(4) + K(3) = 12(1) 4k + 3k = 12 7k = 12 k=12/7