Question

maths
I need answers ​

Answer 1

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$1) \: \: \: \frac{9}{8} + \frac{5}{6} = \frac{27 + 20}{24} \\ = \frac{47}{24} \\ = 1.958 \\ 2) \: \: \: \frac{3}{2} - \frac{9}{7} = \frac{21 - 18}{14} \\ = \frac{3}{14 } \\ = 0.214 \\ 3) \: \: \: \frac{36}{35} \times \frac{7}{9} = \frac{4}{5} \\ = 0.8 \\ 4) \: \: 5 \frac{1}{3} \div 1 \frac{2}{6} = \frac{15 + 1}{3} \div \frac{6 + 2}{6} \\ = \frac{16}{3} \div \frac{8}{6} \\ = \frac{16}{3} \times \frac{6}{8} \\ = 2 \times 2 = 4$

$5) \: \: 875.75 + \\ \: \: \: \: 26.64 \\ - - - - - - \\ 902.39 \\ - - - - - - \\ \\ 6) \: \: \: 35.438 - \\ 17.200 \\ - - - - - \\ 18.238 \\ - - - - - \\ 7) \: \: \: 7.8 \times 5.1 = 39.78 \\ 8) \: \: \: 7.638 \div 6 = 1.273 \\ 9) \: \: \: 39.25 \div 2.5 = 15.7$

$10) \: \: \: 35.82 \times 10 = 358.20 \\ = 358.2 \\ 11) \: \: 978.36 \times 100 = 97836.00 \\ = 97836 \\ 12) \: \: 815.25 \times 1000 = 815250.00 \\ = 815250$

$13) \: \: 87.93 \div 10 = 8.793 \\ 14) \: \: 763.85 \div 100 = 7.6385 \\ 15) \: \: 918.36 \div 1000 = 0.91836$

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