Question

11£®ÓÃÄãϲ»¶µÄ·½·¨¼ÆË㣮
£¨$\frac{5}{9}$-$\frac{1}{6}$£©¡Â$\frac{5}{6}$
205¡Á$\frac{203}{204}$
$\frac{2}{3}$¡Á$\frac{4}{25}$+$\frac{1}{25}$¡Á4
6¡Â£¨$\frac{1}{2}$-$\frac{1}{3}$£©
$\frac{5}{8}$¡Á$\frac{7}{5}$+$\frac{1}{10}$
£¨20.2¡Á0.4+7.88£©¡Â4.2£®

Answer 1

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=$\frac{7}{18}$¡Á$\frac{6}{5}$
=$\frac{7}{15}$

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=£¨204+1£©¡Á$\frac{203}{204}$
=204¡Á$\frac{203}{204}$+1¡Á$\frac{203}{204}$
=203+$\frac{203}{204}$
=203$\frac{203}{204}$

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=$\frac{4}{25}$¡Á£¨$\frac{2}{3}$+1£©
=$\frac{4}{25}$¡Á$\frac{5}{3}$
=$\frac{4}{15}$

£¨4£©6¡Â£¨$\frac{1}{2}$-$\frac{1}{3}$£©
=6$¡Â\frac{1}{6}$
=36

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=$\frac{7}{8}$+$\frac{1}{10}$
=$\frac{35}{40}$+$\frac{4}{40}$
=$\frac{39}{40}$

£¨6£©£¨20.2¡Á0.4+7.88£©¡Â4.2
=£¨8.08+7.88£©¡Â4.2
=15.96¡Â4.2
=3.8

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