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電子課本網(wǎng) › 第4頁(yè)

第4頁(yè)

信息發(fā)布者：

$4a + 2$

$\frac{3}{4}$

$\frac{9}{16}$

$\frac{1}{22}$

0.008

$\frac{1}{3}$

$\frac{4}{3}$

$\frac{5}{6}$

$\frac{1}{49}$

解：?$1.6x=48 $?

?$x = 30$?

解：?$\frac {1}{2}x-\frac {1}{3}x=\frac {1}{10}$?

?$\frac {1}{6}x=\frac {1}{10} $?

?$x = \frac {3}{5}$?

解：?$\frac {3}{5}x=\frac {23}{5}$?

?$ x = \frac {23}{3}$?

?$=\frac {3}{20}×\frac {10}{7}$?

?$= \frac {3}{14}$?

?$=\frac {8}{17}×\frac {1}{9}+\frac {1}{9}×\frac {9}{17}$?

?$=\frac {1}{9}$?

?$= \frac {1}{9}$?

?$=4×\frac {7}{4}-\frac {1}{7}$?

?$=7-\frac {1}{7}$?

?$ =6\frac {6}{7}$?

?$=30×\frac {3}{5}+30×\frac {1}{6}-30×\frac {4}{15} $?

?$=18+5-8$?

?$=15$?

?$=\frac {8}{11}×\frac {5}{2} $?

?$=\frac {20}{11}$?

?$=(600+5)+(600-2)+(600+1)+(600+2)+(600-3)+(600-6)$?

?$= 3597$?

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