what is the common denominator of 3 fifths and 4 sevenths

and also how do you find a common denominator please hurry up thank youblush

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1 Answer

Least common denominator (LCD) of 3/5 and 4/7

The bottoms (5 and 7) are prime numbers and have no common factors, so the LCD is just 5 * 7 = 35.
by Level 13 User (103k points)

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