$$\frac { 1 } { 4 } + \frac { 1 } { 4 } + \frac { 1 } { 4 } + \frac { 1 } { 4 }$$
$1$
$$\frac{1+1}{4}+\frac{1}{4}+\frac{1}{4}$$
$$\frac{2}{4}+\frac{1}{4}+\frac{1}{4}$$
$$\frac{2+1}{4}+\frac{1}{4}$$
$$\frac{3}{4}+\frac{1}{4}$$
$$\frac{3+1}{4}$$
$$\frac{4}{4}$$
$$1$$
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