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\(\frac{4}{3}+\frac{1}{3}:x=\frac{5}{2}\)
\(\frac{1}{3}:x=\frac{5}{2}-\frac{4}{3}\)
\(\frac{1}{3}:x=\frac{7}{6}\)
\(x=\frac{1}{3}:\frac{7}{6}\)
\(x=\frac{2}{7}\)
4/3 + 1/3 : x = 5/2
5/3 : x = 5/2
x = 5/2 x 5/3
x = 25/6
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# MissyGirl #
a: \(=2.125+5.375+7.15+6.85+7.5\)
=7,5+14+7,5
=15+14=29
b: \(\Leftrightarrow\left(\dfrac{4}{5}\cdot\dfrac{5}{6}+\dfrac{1}{5}\cdot x\right)\cdot30=60\)
=>(2/3+1/5x)=2
=>1/5x=2-2/3=4/3
=>x=4/3*5=20/3
a) \(x\times\frac{5}{7}=\frac{1}{4}+\frac{1}{5}\)
\(x\times\frac{5}{7}=\frac{9}{20}\)
\(x=\frac{9}{20}\div\frac{5}{7}\)
\(x=\frac{63}{100}\)
a(2) : \(2\frac{3}{3}\div x=\frac{2}{5}-\frac{1}{3}\)
\(\frac{9}{3}\div x=\frac{1}{15}\)
\(x=\frac{9}{3}\div\frac{1}{15}\)
\(x=45\)
6 2/7 + 7 3/5 + 8 6/9 + 9 1/4 + 2/5 + 5/7 + 1/3 x 3/4 + 1967
= 44/7 + 38/5 + 78/9 + 37/4 + 2/5 + 5/7 + 1/3 + 1967
= ( 44/7 + 5/7 ) + ( 38/5 + 2/5 ) + ( 26/3 + 1/3 ) + ( 37/4 + 3/4 ) +1967
= 7 + 8 + 9 + 10 + 1967
= 15 + 9 + 10 + 1967
= 24 + 10 + 1967
= 34 + 1967
= 2001
\(\frac{3}{5}+\frac{2}{5}:x=\frac{4}{5}\)
\(=>\frac{2}{5}:x=\frac{4}{5}-\frac{3}{5}\)
\(=>\frac{2}{5}:x=\frac{1}{5}\)
\(=>x=\frac{2}{5}:\frac{1}{5}\)
\(=>x=2\)
Vậy x = 2
3/5 + 2/5 : x = 4/5
2/5 : x = 1/5
x = 1/2