(9\(\frac{30303}{80808}\)+ 7\(\frac{303030}{484848}\)) + 4,03
H=\(\left(9\frac{30303}{80808}+7\frac{303030}{484848}\right)+4,03\)
\(H=\left(9+\dfrac{3}{8}+7+\dfrac{5}{8}\right)+4.03=17+4.03=21.03\)
TÍNH HỢP LÍ:
A=(\(9\frac{30303}{80808}\)+7\(\frac{303030}{484848}\)) +4,03
\(A=\left(9\frac{30303}{80808}+7\frac{303030}{484848}\right)+4,03\)
\(A=\left(9,375+7,625\right)+4,03\)
\(A=17+4,03\)
\(A=21,03\)
H= (9/30303/80808+7/303030/484848)+4,03
H = (9/30303/80808+7/303030/484848)+4,03
= ( \(\frac{75}{8}+\frac{61}{8}\)) + \(\frac{403}{100}\)
= \(\frac{136}{8}\)+ \(\frac{403}{100}\)
= 17 + \(\frac{403}{100}\)
= \(\frac{2103}{100}\)
Vậy : H = \(\frac{2103}{100}\)
#Chúc bạn học tốt !
tính nhanh:
C = \(9\frac{30303}{80808}\) + 4,03 + \(7\frac{303030}{484848}\)
\(C=9\frac{30303}{80808}+4,03+7\frac{303030}{484848}\)
\(=9\frac{3}{8}+4\frac{3}{100}+7\frac{5}{8}\)
\(=\left(9+7\right)+\left(\frac{3}{8}+\frac{5}{8}\right)+4\frac{3}{100}\)
\(=16+1+4\frac{3}{100}\)
\(=21\frac{3}{100}\)
Tính hợp lí giá trị biểu thức sau:
H = (9 30303/80808 + 7 303030/484848) + 4,03
Tính
I=10101.(\(\frac{5}{111111}+\frac{5}{222222}-\frac{4}{3.7.11.13.37}\))
H=(9\(\frac{30303}{80808}+7\frac{303030}{484848}\))+4,03
I=10101(5/111111+5/222222+4/3.7.11.13.37)
I=10101(5/111111+5/222222+4/111111)
I=10101(10/222222+5/222222+8/222222)
I=10101.23/222222
I=232323/222222
\(I=\frac{7}{22}\)
\(H=\frac{2103}{100}=21,03\)
tính giá trị hợp lý của các biểu thức sau
A= [9\(\frac{30303}{80808}\) + 7\(\frac{303030}{484848}\) ] +4,03
\(A=\left(9+\frac{30303}{80808}+7+\frac{303030}{484848}\right)+4,03\)
\(A=\left(9+\frac{3\times10101}{8\times10101}+7+\frac{30\times10101}{48\times10101}\right)+4,03\)
\(A=\left(9+\frac{3}{8}+7+\frac{5}{8}\right)+4,03\)
\(A=\left(9+7+\frac{3}{8}+\frac{5}{8}\right)+4,03\)
\(A=\left(16+1\right)+4,03\)
\(A=17+4,03=21,03\)
H=(9 30303 phần 80808+7 303030 phần 484848)+4,03
I=10101.(5 phần 111111+5 phần 222222-4 phần 3.7.11.13.37)
tính hợp lí
a)\(F=\left(9,75.21\frac{3}{7}+\frac{39}{4}.18\frac{4}{7}\right).\frac{15}{78}\)
b)\(H=\left(9\frac{30303}{80808}+7\frac{303030}{484848}\right)+4,03\)
\(F=\left(9,75.21\frac{3}{7}+\frac{39}{4}.18\frac{4}{7}\right).\frac{15}{78}=\left(\frac{39}{4}.21\frac{3}{7}+\frac{39}{4}.18\frac{4}{7}\right).\frac{15}{78}=\left(\frac{39}{4}\left(21\frac{3}{7}+18\frac{4}{7}\right)\right).\frac{15}{78}=\left(\frac{39}{4}.40\right).\frac{15}{78}=390.\frac{15}{78}=75\)\(H=\left(9\frac{30303}{80808}+7\frac{303030}{484848}\right)+4,03=\left(9\frac{3}{8}+7\frac{30}{48}\right)+4,03=17+4,03=21,03\)