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  • 1 # 使用者5916393697425

    1.6:2.4=16:24=2:3=2/3

    8/2.4=80:24=10:3=10/3

    7/3:9/2=14:27=14/27

    一般遇到帶小數點的,如5.4就乘以10倍把它變成整數,兩位小數的就乘以100倍,依次類推。然後再進行約分。遇到分數形式的,就前後兩個數同乘以分母的最小公倍數,把它們都變成整數再進行約分。

    12.5:25=0.5(比值)=1:2(簡比)

    100:80=1.25

    200:40=5

    12.5:50=0.25

    1.5:30=0.05

    2.2:1.1=2

    1.5:50=0.03

    1.5:30=0.05

    1.5:15=0.1

    2.4:60=0.04

    2.4:40=0.06

    3.6:36=0.6

    2.4:60=0.04

    5.1:0.3=17

    2.4:0.4=6

    2.4:0.8=3

    6.8:0.4=17

    2.4:0.3=8

    2.8:0.4=7

    2.4:8=0.3

    8.8:0.8=11

    2.4:3=0.8

    18.5:0.5=37

    3.64:52=

    0.85:0.4=

    0.32:2.5=

    0.75:2.5=

    1.25:0.8=

    2.5:0.4=

    1.25:4.4=

    2.5:8.8=

    19.4:12=

    59.8:0.23=

    19.76:5.2=

    10.8:45=

    21:1.4=

    8.84:1.7=

    62.1:0.03=

    1.89:54=

    0.51:2.2=

    7.1:2.5=

    1.998:0.54=

    1.28:16=

    2.1:0.4=

    2.56:32=

    50.18:38.6=

    4.68:75=

    14.7:0.07=

    5.4:15=

    124.8:0.24=

    23.4:585=

    0.544:0.025=

    203.5:11=

    24:15=

    3.64:52=

    0.85:0.4=

    0.32:2.5=

    0.75:2.5=

    1.25:0.8=

    2.5:0.4=

    1.25:4.4=

    2.5:8.8=

    1.25:0.8=

    2.5:0.4=

    5.5:0.2=1.1

    35:5=

    15:5=

    23:3=

    125:25=

    480:80=

    16:5=

    27:3=

    90:15=

    48:4=

    640:16=

    39:3=

    24:20=

    32:3=

    48:16=

    12:8=

    27:3=

    56:14=

    24:8=

    14:2=

    560:80=

    96:24=

    40:20=

    18.5:0.5=

    19.4:12=

    59.8:0.23=

    19.76:5.2=

    10.8:45=

    21:1.4=

    8.84:1.7=

    62.1:0.03=

    1.89:54=

    0.51:2.2=

    7.1:2.5=

    1.998:0.54=

    1.28:16=

    2.1:0.4=

    2.56:32=

    50.18:38.6=

    4.68:75=

    14.7:0.07=

    5.4:15=

    124.8:0.24=

    23.4:585=

    0.544:0.025=

    203.5:11=

    243:15=

    3.64:52=

    0.85:0.4=

    40:30=

    37:26=

    76:39=

    605:55=

    30:20=

    12:8=

    27:32=

    48:27=

    4500:20=

    73:15 =

    120:600 =

    200:360=

    6800:400=

    280:270=

    4:2500=

    6000:40=

    5:1280=

    310:70=

    400:14=

    470:180=

    1000:25=

    160:600=

    20:420=

    290:300=

    8100:300=

    7600:200=

    7600:400=

    680:270=

    980:14=

    4200:30=

    6:1300=

    1300:50=

    200:48=

    930:660=

    530:280=

    9200:400=

    840:21=

    180:500=

    8000:500 =

    1900:20=

    200:160=

    8700:300=

    300:330=

    3:1400=

    7000:14=

    600:12=

    9600:80=

    140:300=

    8800:40=

    9600:800=

    750:290=

    5:490=

    760:20=

    7500:500=

    370:200=

    650:13=

    240:4=

    640:80=

    15:10=

    12:11=

    160:30=

    220:40=

    104:5=

    4500:50=

    120:2=

    90:30=

    270:30=

    270:30=

    84:21=

    76:9=

    66:7=

    100:54=

    123:15=

    360:4=

    55:5=

    32:6=

    7000:70=

    200:40=

    180:30=

    240:40=

    35:20=

    140:7=

    130:6=

    280:30=

    350:2=

    550:11=

    250:6=

    7200:900=

    510:201=

    1250:8=

    48:20=

    6600:600=

    390:140=

    11:880=

    24:50=

    3600:400=

    4000:50=80

    530:70=

    420:90=

    18.5:0.5=37

    55:1.1=50

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