B=2011 x 2012-1 / 2012 x 2010 + 2011 + 1 2/3 x 1 2/5 x 1 2/7 1 2/9 – 11/3
C=2 2/3 + 5/9 + 4/9 : ( 30% – 1/10)-2/9
B=2011 x 2012-1 / 2012 x 2010 + 2011 + 1 2/3 x 1 2/5 x 1 2/7 1 2/9 – 11/3 C=2 2/3 + 5/9 + 4/9 : ( 30% – 1/10)-2/9
By Alice
By Alice
B=2011 x 2012-1 / 2012 x 2010 + 2011 + 1 2/3 x 1 2/5 x 1 2/7 1 2/9 – 11/3
C=2 2/3 + 5/9 + 4/9 : ( 30% – 1/10)-2/9
B = 2011 x 2012 – 1/2012 x 2010 + 2011 + 1 2/3 x 1 2/5 x 1 2/7 x1 2/9 – 11/3
B = 4046132 – 1005/1006 + 2011 + 7/3 x 11/7 – 11/3
B = 4046132 – 1005/1006 + 2011 + 77/21 – 11/3
B = 4046131,001 + 0
B = 4046131,001
C = 2 2/3 + 5/9 + 4/9 : ( 30% – 1/10 )- 2/9
C = 2 2/3 + 5/9 + 4/9 : ( 30/100 – 1/10 ) – 2/9
C = 2 2/3 + 5/9 + 4/9 : 1/5 – 2/9
C = 2 2/3 + 5/9 + 20/9 – 2/9
C = 29/9 + 20/9 – 2/9
C = 49/9 – 2/9
C = 47/9
CHÚC BN HỌC TỐT !!
Đáp án:
B = 2011 x 2012 – 1/2012 x 2010 + 2011 + 1 2/3 x 1 2/5 x 1 2/7 x1 2/9 – 11/3
B = 4046132 – 1005/1006 + 2011 + 7/3 x 11/7 – 11/3
B = 4046132 – 1005/1006 + 2011 + 77/21 – 11/3
B = 4046131,001 + 0
B = 4046131,001
C = 2 2/3 + 5/9 + 4/9 : ( 30% – 1/10 )- 2/9
C = 2 2/3 + 5/9 + 4/9 : ( 30/100 – 1/10 ) – 2/9
C = 2 2/3 + 5/9 + 4/9 : 1/5 – 2/9
C = 2 2/3 + 5/9 + 20/9 – 2/9
C = 29/9 + 20/9 – 2/9
C = 49/9 – 2/9
C = 47/9
Chúc bn hok tốt !