u + 1:2 = 3 1:4

u+1 : 2 = 31: 4

u+1/ 2   =31/4

4(u+1)   =31*2

4u +4    = 62

4u         = 58

u           = 58/4

u           =14.5

Let's see, Sasini....

u + 1/2 = 31/4     subtract 1/2 from both sides

u = 31/4 - 1/2      get a common denominator

u = 31/4 - 2/4

u = 29/4  = 7 + 1/4 = 7.25

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Ah...I see ...we just interpreted this one differently..!!!!!....

Your answer is good, too....!!!