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28+180<63\left(1\times 2+1\right)
Multiply both sides of the equation by 126, the least common multiple of 9,7,2. Since 126 is positive, the inequality direction remains the same.
208<63\left(1\times 2+1\right)
Add 28 and 180 to get 208.
208<63\left(2+1\right)
Multiply 1 and 2 to get 2.
208<63\times 3
Add 2 and 1 to get 3.
208<189
Multiply 63 and 3 to get 189.
\text{false}
Compare 208 and 189.
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