The LCM of 12 and 8 is 24.
3/12 = 6/24
5/8 = 15/24
So clearly, the second fraction is much larger.
Another way to check is to put them side by side, and cross multiply upwards, then compare products.
3...........5
--..........--
12.........8
Cross multiplying the 8 and the 3 gives 24, and put that above the 3
Cross multiplying the 12 and the 5 gives 60, and put that above the 5
since 24<60, the first fraction is less.
3 eights = 24 5 twelves = 60 Their sum is 24 + 60 = 84
23/24
3/4
One fourth
3/4
1/3
2/3
As a fraction it is 3/8
Four twelves = 4*12 = 48 so an equivalent fraction is 96/2.
36667 / 10000
0.375
15 7/12 - 14 3/8 = 3 1/2