Answer:
1/12
Explanation:
the question is asking to subtract a from b, which is the same as asking to find a-b
answer = 5/6 - 3/4
= 10/12 - 9/12 (lowest common multiple of 6 and 4 is 12)
= 1/12
if you dont know how to find lowest common multiple by prime factorisation, you can make the common denominator 6x4 instead which is 24, so
5/6 - 3/4 = 20/24 - 18/24
=2/24 = 1/12