Question

subract 7/36 from 1/9​

Answer 1

Answer:

7/36 - 1/9 =

(1 × 7)/(1 × 36) - (4 × 1)/(4 × 9) =

7/36 - 4/36 =

(7 - 4)/36 =

3/36

Step-by-step explanation:

To reduce a fraction: divide the numerator and denominator by their greatest common factor, GCF.

Fraction: 7/36 already reduced to the lowest terms.

The numerator and denominator have no common prime factors.

Their prime factorization:

7 is a prime number;

36 = 22 × 32;

gcf (7; 22 × 32) = 1;

LCM will be the common denominator of the fractions that we work with.

The prime factorization of the denominators:

36 = 22 × 32;

9 = 32;

Multiply all the unique prime factors, by the largest exponents:

LCM (36; 9) = 22 × 32 = 36

Divide LCM by the numerator of each fraction.

For fraction: 7/36 is 36 ÷ 36 = 1;

For fraction: - 1/9 is 36 ÷ 9 = (22 × 32) ÷ 32 = 4;

Answer 2

Step-by-step explanation:

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