Question

Q1) lowest form:
8-4.2÷6+0.3×0.4

Q2) Simplify:
(5^-1×3^-1)^-1 ÷ 6^-1

pls explain​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

$8 - 4.2 \div 6 + 0.3 \times 0.4 \\ = 8 - (4.2 \div 6) + (0.3 \times 0.4) \\ = 8 - 0.7 + 1.2 \\ = (8 + 1.2) - 0.7 \\ = 9.2 - 0.7 \\ = 8.5$