37.13-13/12.34-34
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( 37 . 13 - 13 ) : ( 24 + 37 . 12 )
= ( 481 - 13 ) : ( 24 + 444 )
= 468 : 468
= 1
\(\left(37.13-13\right):\left(24+37.12\right)\)
\(=468:468\)
\(=1\)
\(A=\frac{37\cdot13-13}{24+37\cdot12}=\frac{37\cdot\left(12+1\right)-13}{24+37\cdot12}=\frac{37\cdot12+37-13}{24+37\cdot12}=\frac{37\cdot12+24}{24+37\cdot12}=1\)
BẠN VÔ fx mà ghi
\(A=\frac{37.12+37-13}{24+37.12}\)\(=\frac{37.12+24}{24+37.12}\)\(=1\)
12.34<mx2<3.45+312:26
12.34<mx2<3.45+12
12.34<mx2<15.45
12.34:2<m<15.45:2
6.17<m<7.725
m = tu tinh
a, 1990 . 1990 - 1992 . 1988
= 3960100 - 3960096
= 4 .
b, ( 1374 . 57 + 687 . 86 ) : ( 26 . 13 + 74 . 14 )
= ( 78318 + 59082 ) : ( 338 + 1036 )
= 137400 : 1374
= 100 .
c, \(\frac{37.13-13}{24 +37.12}\)
\(=\frac{37.\left(12+1\right)-13}{24+37.12}\)
\(=\frac{37.12+37-13}{24+37.12}\)
\(=\frac{37.12+24}{24+37.12}\)
\(=1\)
\(\frac{13.\left(37-1\right)}{12\left(2+37\right)}=\frac{13.36}{12.39}=\frac{13.4.3.3}{4.3.3.13}=1\)
học tốt nhé
ủng hộ nhé
\(\frac{37.13-13}{24+37.12}=\frac{37.12+37-13}{24+37.12}=\frac{37.12+\left(37-13\right)}{24+37.12}=\frac{37.12+24}{24+37.12}=1\)
\(37.13-\frac{13}{12.34}-34\\ =481-\frac{13}{408}-34\\ =\frac{196248}{408}-\frac{13}{408}-34\\ =\frac{196235}{408}-34\\ =\frac{196235}{408}-\frac{13872}{408}=\frac{182363}{408}\)