1 - ( 5\(\frac{4}{9}\)+ X - 7\(\frac{7}{18}\)) : 15\(\frac{3}{4}\)= 0
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mik nhầm nha mn
\(1-\left\{5\frac{4}{9}+x-7\frac{7}{18}\right\}:15\frac{3}{4}=0\)
khỏi chép lại đề nha
\(1-\left(\frac{49}{9}+x-\frac{133}{18}\right):15=0+\frac{3}{4}\)
\(1-\left(\frac{49}{9}+x-\frac{133}{18}\right):15=\frac{3}{4}\)
\(1-\left(\frac{49}{9}+x-\frac{133}{18}\right)=\frac{3}{4}.15\)
\(1-\left(\frac{49}{9}+x-\frac{133}{18}\right)=\frac{45}{4}\)
\(\frac{49}{9}+x-\frac{133}{18}=1-\frac{45}{4}\)
\(\frac{49}{9}+x-\frac{133}{18}=\frac{-41}{4}\)
\(\frac{49}{9}+x=\frac{-41}{4}+\frac{133}{18}\)
\(\frac{49}{9}+x=\frac{-103}{36}\)
\(x=\frac{-103}{3}-\frac{49}{9}\)
\(x=\frac{-299}{36}\)
tk mik nha
a) $\frac{1}{6}:\frac{3}{7} = \frac{1}{6} \times \frac{7}{3} = \frac{7}{{18}}$
b) $\frac{5}{{12}}:\frac{1}{4} = \frac{5}{{12}} \times \frac{4}{1} = \frac{{5 \times 4}}{{12 \times 1}} = \frac{{5 \times 4}}{{4 \times 3 \times 1}} = \frac{5}{3}$
c) $\frac{4}{{15}}:\frac{8}{3} = \frac{4}{{15}} \times \frac{3}{8} = \frac{{4 \times 3}}{{15 \times 8}} = \frac{{4 \times 3}}{{5 \times 3 \times 4 \times 2}} = \frac{1}{{10}}$
d) $\frac{{18}}{5}:\frac{9}{{10}} = \frac{{18}}{5} \times \frac{{10}}{9} = \frac{{18 \times 10}}{{5 \times 9}} = \frac{{9 \times 2 \times 5 \times 2}}{{5 \times 9}} = 4$
1 - (49/9 + x -133/18) : 63/4 = 0
1 - (49/9 + x -133/18) = 0 x 63/4
1 - (49/9 + x -133/18) = 0
49/9 + x -133/18 = 1 - 0
49/9 + x -133/18 = 1
49/9 + x = 1 + 133/18
49/9 + x = 151/18
x = 49/9 +151/18
x = 53/18
49/15:3/7-1/8