Answer:
1936−3/8=11/72
Explanation:
19/36−38=?
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(19/36, 3/8) = 72
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(19/36×22)−(38×99)=?
Complete the multiplication and the equation becomes
38/72−27/72=?
The two fractions now have like denominators so you can subtract the numerators.
Then:
38−27/72=117/2
This fraction cannot be reduced.
Therefore:
1936−38=11/72
(Some of the numbers might be a fraction)