This the method on how I would work it out:
First, convert both fraction's denominator to their LCM. Convert the LCM of 16 and 18:
Formula a*b/gcd(a,b) (The GCD of 16 and 18 is 2)
16 * 18/2 = 288/2 = 144
144 / 16 = 9
144 / 18 = 8
3/16 * 9/9 = 27/144
1/18 * 8/8 = 8/144
27/144 - 8/144 = 19/14
Final Answer: 3/16 - 1/18 = 19/144
First, convert both fraction's denominator to their LCM. Convert the LCM of 16 and 18:
Formula a*b/gcd(a,b) (The GCD of 16 and 18 is 2)
16 * 18/2 = 288/2 = 144
144 / 16 = 9
144 / 18 = 8
3/16 * 9/9 = 27/144
1/18 * 8/8 = 8/144
27/144 - 8/144 = 19/14
Final Answer: 3/16 - 1/18 = 19/144
