Math

QuestionFind the least common denominator of 435,177,322\frac{4}{35}, \frac{1}{77}, \frac{3}{22}. A. 110 B. 770 C. 2,695 D. 8,470 E. \$ 9,290

Studdy Solution

STEP 1

Assumptions1. The denominators of the fractions are35,77, and22. . We are looking for the least common denominator (LCD) which is the smallest number that is a multiple of all the denominators.

STEP 2

The least common denominator of the fractions can be found by finding the least common multiple (LCM) of the denominators. The LCM of numbers is the smallest number that is a multiple of all the numbers.
LCD=LCM(35,77,22)LCD = LCM(35,77,22)

STEP 3

To find the LCM of the numbers, we first find the prime factorization of each number.
Prime factorization of35 is 5×75 \times7. Prime factorization of77 is 7×117 \times11. Prime factorization of22 is 2×112 \times11.

STEP 4

The LCM of the numbers is found by multiplying each prime factor the greatest number of times it occurs in either number.
LCM(35,77,22)=21×1×71×111LCM(35,77,22) =2^1 \times^1 \times7^1 \times11^1

STEP 5

Calculate the LCM.
LCM(35,77,22)=2×5×7×11=770LCM(35,77,22) =2 \times5 \times7 \times11 =770The least common denominator of the fractions 435,177\frac{4}{35}, \frac{1}{77}, and 322\frac{3}{22} is770.

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