Question

(3÷15)-(14÷3)-(7÷20)-(5÷35)=?​

Answer 1

Answer:

-4.9595...

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Answer 2

Answer:

$(3 \div 15) - (14 \div 3) - (7 \div 20) - (5 \div 35) \\ \\ = \frac{3}{15} - \frac{14}{3} - \frac{7}{20} - \frac{5}{35} \\ \\ = \frac{1}{5} - \frac{14}{3} - \frac{7}{20} - \frac{1}{7} \\ \\ = \frac{(84 \times 1) - (140 \times 14) - (21 \times 7) - (60 \times 1)}{420} \\ \\ = \frac{84 - 1960 - 147 - 60}{420} \\ \\ = \frac{84 -2107 - 60}{420} \\ \\ = \frac{84 - 2167}{420} \\ \\ = \frac{ - 2083}{420} \\ \\ =- 4.959$

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