Find the step between consecutive terms. The sequence is decreasing.<br><br>
&bull; From 15.8 to 14.6, there are 2 steps: 15.8 − 14.6 = 1.2, so each step = 1.2 ÷ 2 = 0.6.<br>
&bull; First blank: 15.8 − 0.6 = 15.2<br>
&bull; Second blank: 14.0 − 0.6 = 13.4<br>
&bull; Verify: 13.4 − 0.6 = 12.8 (matches the last term).<br>
&bull; Sequence: 15.8, 15.2, 14.6, 14.0, 13.4, 12.8<br><br>
Final Answer: 15.2, 13.4