A=$\frac{2}{3}$:$\frac{11}{5}$+$\frac{-2}{3}$:$\frac{11}{6}$+4$\frac{2}{3}$
B=($\frac{11^{2}}{200}$+0,415):0,01-$(-2)^{2}$
A=$\frac{2}{3}$:$\frac{11}{5}$+$\frac{-2}{3}$:$\frac{11}{6}$+4$\frac{2}{3}$
B=($\frac{11^{2}}{200}$+0,415):0,01-$(-2)^{2}$
Đáp án:
`A = 2/3 ÷ 11/5 + (-2)/3 ÷ 11/6 + 4 2/3`
`-> A = 2/3 ×5/11 -2/3 × 6/21 + 14/3`
`-> A = 2/3 × (5/11 – 6/11) + 14/3`
`-> A = 2/3 × (-1)/11 + 14/3`
`-> A = (-2)/33 + 14/3`
`-> A = 152/33`
`text{Vậy}` `A = 152/33`
`B = (11^2/200 + 0,415) ÷ 0,01 – (-2)^2`
`-> B =(121/200 + 0,415) ÷ 0,01 – 4`
`-> B = 51/50 ÷ 0,01 – 4`
`-> B = 102 – 4`
`-> B = 98`
`text{Vậy B = 98}`
Đáp án:
`A = 2/3 : 11/5 + -2/3 : 11/6 + 4 2/3`
` = 2/3 × 5/11 + 2/3 × -6/11 + 4 2/3`
` = 2/3 × ( 5/11 – 6/11 ) + 14/3`
` = 2/3 × -1/11 + 14/3`
` =-2/33 + 14/3`
` = 152/33`
____________________________________
`B = ((11^2)/200 + 0,415) : 0,01 + (-2)^3`
` = (121/200 + 83/200) : 1/100 + 8`
` = 204/200 × 100 + 8`
` = 102 + 8 = 110`
Theo yêu cầu sửa rồi nhé !
$\text{@Harry}$