Question

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3-$\frac{1}{5}$-$\frac{5}{6}$-$\frac{4}{5}$	7.3¡Á1.16-7.3¡Á0.16	$\frac{4}{7}$©€$\frac{1}{4}$-$\frac{1}{7}$©€$\frac{3}{4}$
9-$\frac{8}{13}$-$\frac{5}{13}$	0.25©€$\frac{11}{13}$©€$\frac{3}{4}$©€$\frac{2}{13}$	$\frac{5}{11}$©€$\frac{4}{17}$©€$\frac{13}{17}$£®

Answer 1

·ÖÎö £¨1£©¡¢£¨4£©ÀûÓüõ·¨ÐÔÖʼÆË㣻
£¨2£©ÀûÓó˷¨·ÖÅäÂɼÆË㣻
£¨3£©¡¢£¨5£©ÀûÓüӷ¨µÄ½»»»ÂÉÓë½áºÏÂɼÆË㣻
£¨6£©ÀûÓüӷ¨½áºÏÂɼÆË㣮

½â´ð ½â£º£¨1£©3-$\frac{1}{5}$-$\frac{5}{6}$-$\frac{4}{5}$  
=3-£¨$\frac{1}{5}$+$\frac{4}{5}$£©-$\frac{5}{6}$
=3-1-$\frac{5}{6}$
=2-$\frac{5}{6}$
=1$\frac{1}{6}$

£¨2£©7.3¡Á1.16-7.3¡Á0.16
=7.3¡Á£¨1.16-0.16£©
=7.3¡Á1
=7.3

£¨3£©$\frac{4}{7}$©€$\frac{1}{4}$-$\frac{1}{7}$©€$\frac{3}{4}$   
=£¨$\frac{4}{7}$-$\frac{1}{7}$£©+£¨$\frac{1}{4}$+$\frac{3}{4}$£©
=$\frac{3}{7}$+1
=1$\frac{3}{7}$

£¨4£©9-$\frac{8}{13}$-$\frac{5}{13}$
=9-£¨$\frac{8}{13}$+$\frac{5}{13}$£©
=9-1
=8

£¨5£©0.25©€$\frac{11}{13}$©€$\frac{3}{4}$©€$\frac{2}{13}$ 
=£¨0.25+$\frac{3}{4}$£©+£¨$\frac{11}{13}$+$\frac{2}{13}$£©
=1+1
=2

£¨6£©$\frac{5}{11}$©€$\frac{4}{17}$©€$\frac{13}{17}$
=$\frac{5}{11}$+£¨$\frac{4}{17}$+$\frac{13}{17}$£©
=$\frac{5}{11}$+1
=1$\frac{5}{11}$

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