a, hỗn số 11 3/4 – ( 6 5/6 – 4 1/2 ) +1 2/3 b, /0%/ – ( -1/12) + 1/15 mong mọi người giúp mik ạ cảm ơn mọi người nhìu thanks
a, hỗn số 11 3/4 – ( 6 5/6 – 4 1/2 ) +1 2/3 b, /0%/ – ( -1/12) + 1/15 mong mọi người giúp mik ạ cảm ơn mọi người nhìu thanks
a, $11\dfrac{3}{4}-(6\dfrac{5}{6}-4\dfrac{1}{2})+1\dfrac{2}{3}$
$=\dfrac{47}{4}-(\dfrac{41}{6}-\dfrac{9}{2})+\dfrac{5}{3}$
$=\dfrac{47}{4}-(\dfrac{41}{6}-\dfrac{27}{6})+\dfrac{5}{3}$
$=\dfrac{47}{4}-\dfrac{7}{3}+\dfrac{5}{3}$
$=\dfrac{47}{4}-\dfrac{2}{3}$
$=\dfrac{133}{12}$
b, $|0\%|-(-\dfrac{1}{12})+\dfrac{1}{15}$
$=0+\dfrac{1}{12}+\dfrac{1}{15}$
$=\dfrac{3}{20}$
`a, 11 3/4 – (6 5/6 – 4 1/2 ) + 1 2/3`
`=47/4 – (41/6 – 9/2 ) + 5/3`
`=47/4 – (41/6 – 27/6) + 5/3`
`=47/4 – 14/6 + 5/3`
`=282/24 – 56/24 + 40/24`
`=(282-56+40)/24`
`=266/24=133/12`
`b,|0%| – ( -1/12) + 1/15`
`=0 -(-1/12)+ 1/15`
`=1/12 + 1/15`
`=5/60 + 4/60`
`=9/60=3/20`