Question

8£®ÁÐʽ¼ÆË㣺
£¨1£©24³ýÒÔ$\frac{5}{6}$µÄµ¹Êý£¬ËùµÃµÄÉ̼ÓÉÏ36¸ö$\frac{5}{6}$£¬ºÍÊǶàÉÙ£¿
£¨2£©ÓÃ620µÄ$\frac{1}{4}$È¥³ý905¼õÈ¥595µÄ²î£¬µÃÊýÊǶàÉÙ£¿
£¨3£©Ò»¸öÊýµÄ$\frac{3}{5}$ÊÇ15£¬Õâ¸öÊý±È15µÄ$\frac{3}{5}$´ó¶àÉÙ£¿
£¨4£©°Ñ3.6Óë4.5µÄ³Ë»ýƽ¾ù·Ö³É18·Ý£¬ÆäÖеÄÒ»·Ý±È11ÉÙ¼¸£¿
£¨5£©Ò»¸öÊýÔö¼ÓËüµÄ$\frac{1}{4}$ºó£¬»¹±È120µÄ$\frac{2}{3}$ÉÙ10£¬ÇóÕâ¸öÊý£®
£¨6£©Ò»¸öÊýÔö¼ÓËüµÄ60%ºó£¬ÊÇ120µÄ1$\frac{2}{3}$±¶£¬ÇóÕâ¸öÊý£®
£¨7£©Ò»¸öÊýµÄ$\frac{1}{5}$±ÈËüµÄ$\frac{1}{6}$¶à60£¬Õâ¸öÊýÊǶàÉÙ£¿
£¨8£©$\frac{8}{9}$µÄµ¹Êý¼ÓÉÏ2.4³ËÒÔ0.8µÄ»ý£¬ºÍÊǶàÉÙ£¿
£¨9£©Ä³ÊýµÄ3±¶¼õÈ¥4.2£¬²îµÈÓÚ$\frac{1}{3}$µÄµ¹Êý£¬ÇóÕâ¸öÊý£®£¨Ó÷½³Ì½â£©
£¨10£©±ûÊýÊǼס¢ÒÒƽ¾ùÊýµÄ$\frac{6}{7}$£¬¼×¡¢ÒÒÁ½ÊýµÄºÍÊÇ924£¬Çó¼×¡¢ÒÒ¡¢±ûÈýÊýµÄƽ¾ùÊý£®

Answer 1

·ÖÎö £¨1£©$\frac{5}{6}$µÄµ¹ÊýÊÇ$\frac{6}{5}$£¬ÏÈËã24³ýÒÔ$\frac{6}{5}$µÄÉÌ£¬ÔÙËã36³Ë$\frac{5}{6}$µÄ»ý£¬ÔÙÓÃÉ̼ÓÉÏ»ý¼´¿É½â´ð£®
£¨2£©ÏÈËã905¼õÈ¥595µÄ²î£¬ÔÙËã620³Ë$\frac{1}{4}$µÄ»ý£¬ÔÙÓòî³ýÒÔ»ý¼´¿É½â´ð£®
£¨3£©ÓÃ15³ýÒÔ$\frac{3}{5}$Çó³öÒ»¸öÊý£¬ÔÙËã15³Ë$\frac{3}{5}$µÄ»ý£¬ÔÙÓÃÒ»¸öÊý¼õÈ¥Ëã³öµÄ»ý¼´¿É½â´ð£®
£¨4£©ÏÈËã3.6Óë4.5µÄ³Ë»ý£¬ÔÙ³ýÒÔ18·ÝÇó³öÆäÖеÄÒ»·Ý£¬ÔÙÓÃ11¼õÈ¥Ò»·Ý¼´¿É½â´ð£®
£¨5£©°ÑÒ»¸öÊý¿´×÷µ¥Î»¡°1¡±£¬ÏÈËã³ö±È120µÄ$\frac{2}{3}$ÉÙ10µÄÊýÊǶàÉÙ£¬ÔÙ³ýÒÔ£¨1+$\frac{1}{4}$£©¼´¿É½â´ð£®
£¨6£©°ÑÒ»¸öÊý¿´×÷µ¥Î»¡°1¡±£¬ÏÈËã³ö±È120µÄ1$\frac{2}{3}$ÊǶàÉÙ£¬ÔÙ³ýÒÔ£¨1+60%£©¼´¿É½â´ð£®
£¨7£©°ÑÒ»¸öÊý¿´×÷µ¥Î»¡°1¡±£¬ÏÈËã³öÒ»¸öÊýµÄ$\frac{1}{5}$±ÈËüµÄ$\frac{1}{6}$¶à¼¸·ÖÖ®¼¸£¬ÔÙÓÃ60³ýÒÔ¶àµÄ·ÖÂʼ´¿É½â´ð£®
£¨8£©$\frac{8}{9}$µÄµ¹ÊýÊÇ$\frac{9}{8}$£¬ÏÈËã³ö2.4³ËÒÔ0.8µÄ»ý£¬ÔÙ¼ÓÉÏ$\frac{9}{8}$¼´¿É½â´ð£®
£¨9£©ÉèÕâ¸öÊýÊÇx£¬¸ù¾ÝÌâÒâÁгö·½³Ì¼´¿É½â´ð£®
£¨10£©Óüס¢ÒÒÁ½ÊýµÄºÍ³ýÒÔ2Çó³ö¼×¡¢ÒÒÁ½ÊýµÄƽ¾ùÊý£¬ÔÙ³Ë$\frac{6}{7}$Çó³ö±ûÊý£¬ÔÙ°ÑÈý¸öÊýÏà¼ÓÈ»ºó³ýÒÔ3¾ÍÊÇÈý¸öÊýµÄƽ¾ùÊý£®

½â´ð ½â£º£¨1£©24¡Â$\frac{6}{5}$+36¡Á$\frac{5}{6}$
=20+30
=50
´ð£ººÍÊÇ50£®

£¨2£©£¨905-595£©¡Â£¨620¡Á$\frac{1}{4}$£©
=310¡Â155
=2
´ð£ºµÃÊýÊÇ2£®

£¨3£©15¡Â$\frac{3}{5}$-15¡Á$\frac{3}{5}$
=25-9
=16
´ð£ºÕâ¸öÊý±È15µÄ$\frac{3}{5}$´ó16£®

£¨4£©11-3.6¡Á4.5¡Â18
=11-0.2¡Á4.5
=11-0.9
=10.1
´ð£ºÆäÖеÄÒ»·Ý±È11ÉÙ10.1£®

£¨5£©£¨120¡Á$\frac{2}{3}$-10£©¡Â£¨1+$\frac{1}{4}$£©
=70¡Â$\frac{5}{4}$
=56
´ð£ºÕâ¸öÊýÊÇ56£®

£¨6£©120¡Á1$\frac{2}{3}$¡Â£¨1+60%£©
=200¡Â1.6
=125
´ð£ºÕâ¸öÊýÊÇ125£®

£¨7£©60¡Â£¨$\frac{1}{5}$-$\frac{1}{6}$£©
=60¡Â$\frac{1}{30}$
=1800
´ð£ºÕâ¸öÊýÊÇ1800£®

£¨8£©2.4¡Á0.8+$\frac{9}{8}$
=1.92+$\frac{9}{8}$
=3.045
´ð£ººÍÊÇ3.045£®

£¨9£©½â£ºÉèÕâ¸öÊýÊÇx£¬
3x-4.2=3
      3x=7.2
        x=3.6
´ð£ºÕâ¸öÊýÊÇ3.6£®

£¨10£©£¨924¡Â2¡Á$\frac{6}{7}$+924£©¡Â3
=1320¡Â3
=440
´ð£º¼×¡¢ÒÒ¡¢±ûÈýÊýµÄƽ¾ùÊýÊÇ440£®

µãÆÀ ÁÐʽ¼ÆËãÌâ¹Ø¼üÊÇÕÒ³ö¹Ø¼ü´Ê£¬¶Á¶®ÔËËã˳Ðò£¬ÕýÈ·ÁÐʽ¼ÆË㣮