Diberikan 1/2 + 1/3 + 1/4 + 1/6 + a = 2. Nilai a adalah?

1/2 + 1/3 + 1/4 + 1/6 + a = 2
a = 2 - (1/2 + 1/3 + 1/4 + 1/6)
a = 2 - (6/12 + 4/12 + 3/12 + 2/12)
a = 2 - (15/12)
a = 2 - 15/12
a = 24/12 - 15/12
a = 9/12
a = 3/4

[tex] \frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{6} + a = 2 \\ \frac{5}{4} + a = 2 \\ a = 2 - \frac{5}{4} \\ maka \\ = \frac{3}{4} [/tex]