How do I find the LCD of 1/3 and 2/7?

Prime-factor the denominators 3 and 7. LCD = 3 × 7 = 21. Convert: 1/3 = 7/21 and 2/7 = 6/21.

What is the least common denominator of 2/3 and 5/8?

LCM of 3 and 8 is 24, so the LCD is 24. 2/3 = 16/24, 5/8 = 15/24.

What's the least common denominator of 3/4, 4/5, and 2/3?

Take LCM of 4, 5, and 3 → 60. So LCD = 60.

How do you find the common denominator?

Factor each denominator, take the product of the highest powers of all primes (the LCM). That number is the least common denominator. Multiply each numerator by (LCD ÷ its denominator).

What is the common denominator of 1/3 and 4/9?

LCM(3, 9) = 9. So the common denominator is 9. 1/3 = 3/9 and 4/9 stays 4/9.

What is the common denominator of 1/4 and 2/7?

LCM(4, 7) = 28, so the common denominator is 28. 1/4 = 7/28 and 2/7 = 8/28.

Sitemap

Pages

Blog Posts

Pagination