Complete the corresponding expression for the denominator
16ab?=8a \frac{16ab}{?}=8a ?16ab=8a
Using the formula:
xy=zw→x⋅y=z⋅y \frac{x}{y}=\frac{z}{w}\xrightarrow{}x\cdot y=z\cdot y yx=wzx⋅y=z⋅y
We first convert the 8 into a fraction, and multiply
16ab?=81 \frac{16ab}{?}=\frac{8}{1} ?16ab=18
16ab×1=8a 16ab\times1=8a 16ab×1=8a
16ab=8a 16ab=8a 16ab=8a
We then divide both sides by 8a:
16ab8a=8a8a \frac{16ab}{8a}=\frac{8a}{8a} 8a16ab=8a8a
2b 2b 2b