It is a big mystery!!.
Simplify the following:
2+3/4+12+6/8
The gcd of 6 and 8 is 2, so 6/8 = (2×3)/(2×4) = 2/2×3/4 = 3/4:
2+3/4+12+3/4
Put 2+3/4+12+3/4 over the common denominator 4. 2+3/4+12+3/4 = (4×2)/4+3/4+(4×12)/4+3/4:
(4×2)/4+3/4+(4×12)/4+3/4
4×2 = 8:
8/4+3/4+(4×12)/4+3/4
4×12 = 48:
8/4+3/4+48/4+3/4
8/4+3/4+48/4+3/4 = (8+3+48+3)/4:
(8+3+48+3)/4
Answer=62/4=31/2=15 1/2
