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Sagot :
Let the expression = x
x = [ ( 2 X 7 ) + 2] / 7 - [ ( 1 X 3 ) + 1 ] / 3
= [ 14 + 2 ] / 7 - [ 3 + 1 ] / 3
= 16 / 7 - 4 / 3
= ( 48 - 28 ) / 21
= 20 / 21 Answer.. :)
x = [ ( 2 X 7 ) + 2] / 7 - [ ( 1 X 3 ) + 1 ] / 3
= [ 14 + 2 ] / 7 - [ 3 + 1 ] / 3
= 16 / 7 - 4 / 3
= ( 48 - 28 ) / 21
= 20 / 21 Answer.. :)
[tex]2\frac{2}{7}-1\frac{1}{3}\\\\find\ LCD(\frac{2}{7};\frac{1}{3})\\\\the\ list\ of\ multiples\ of\ 7:\ 0;\ 7;\ 14;\ \fbox{21};\ 28;...\\the\ list\ of\ multiples\ of\ 3:\ 0;\ 3;\ 6;\ 9;\ 12;\ 15;\ 18;\ \fbox{21};\ 24;...\\\\LCD(\frac{2}{7};\ \frac{1}{3})=21\\\\\frac{2}{7}=\frac{2\times3}{7\times3}=\frac{6}{21}\\\frac{1}{3}=\frac{1\times7}{3\times7}=\frac{7}{21}\\-------------------[/tex]
[tex]2\frac{2}{7}-1\frac{1}{3}=2\frac{6}{21}-1\frac{7}{21}=1\frac{21+6}{21}-1\frac{7}{21}=1\frac{27}{21}-1\frac{7}{21}=\boxed{\frac{20}{21}}[/tex]
[tex]2\frac{2}{7}-1\frac{1}{3}=2\frac{6}{21}-1\frac{7}{21}=1\frac{21+6}{21}-1\frac{7}{21}=1\frac{27}{21}-1\frac{7}{21}=\boxed{\frac{20}{21}}[/tex]
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