Question

2by5 - 1by4 +(8.1×2.7)÷ 0.09

Answer 1

Answer :

We use BODMAS to solve the problem.

Now,

$\frac{2}{5} - \frac{1}{4} + (8.1 \times 2.7) \div 0.09 \\ \\ = \frac{2}{5} - \frac{1}{4} + 21.87 \div 0.09 \\ \\ = \frac{2}{5} - \frac{1}{4} + 243 \\ \\ = \frac{8 - 5 + 4860}{20},\\ \\ since \: \: LCM \: \: of \: \: 5 \: \: and \: \: 4 \: \: is \: \: 20. \\ \\ = \frac{4863}{20} \\ \\ = 243.15$

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