Question

10£®¼ÆËãÏÂÃæ¸÷Ì⣬ÄܼòËãÒª¼òË㣮
$\frac{5}{6}$¡Á$\frac{1}{8}$+$\frac{1}{6}$¡Â8   
£¨ $\frac{7}{8}$+$\frac{13}{16}$£©¡Â$\frac{13}{16}$    
$\frac{1}{4}$¡Â£¨3-$\frac{5}{13}$-$\frac{8}{13}$£©   
$\frac{1}{4}$¡Á$\frac{4}{7}$+$\frac{3}{4}$£®

Answer 1

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½â´ð ½â£º¢Ù$\frac{5}{6}$¡Á$\frac{1}{8}$+$\frac{1}{6}$¡Â8 
=£¨$\frac{5}{6}+\frac{1}{6}$£©¡Á$\frac{1}{8}$
=$1¡Á\frac{1}{8}$
=$\frac{1}{8}$

¢Ú£¨ $\frac{7}{8}$+$\frac{13}{16}$£©¡Â$\frac{13}{16}$
=$\frac{7}{8}¡Á\frac{16}{13}+\frac{13}{16}¡Á\frac{16}{13}$
=$\frac{14}{13}+1$
=$2\frac{1}{13}$

¢Û$\frac{1}{4}$¡Â£¨3-$\frac{5}{13}$-$\frac{8}{13}$£©
=$\frac{1}{4}¡Â[3-£¨\frac{5}{13}+\frac{8}{13}£©]$
=$\frac{1}{4}¡Á\frac{1}{2}$
=$\frac{1}{8}$

¢Ü$\frac{1}{4}$¡Á$\frac{4}{7}$+$\frac{3}{4}$
=$\frac{1}{7}+\frac{3}{4}$
=$\frac{4}{28}+\frac{21}{28}$
=$\frac{25}{28}$

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