19/24 - 49/25 +4/24 -51/25

2 câu trả lời

Đáp án+Giải thích các bước giải:

$\dfrac{19}{24}-\dfrac{49}{25}+\dfrac{4}{24}-\dfrac{51}{25}$

$=(\dfrac{19}{24}+\dfrac{4}{24})-(\dfrac{49}{25}+\dfrac{51}{25})$

$=\dfrac{23}{24}-4$

$=\dfrac{23}{24}-\dfrac{96}{24}$

$=\dfrac{-73}{24}$

~Chúc bạn học tốt nhé~

`19/24 - 49/25 + 4/24 - 51/25`

`= ( 19/24 + 4/24 ) - ( 49/25 + 51/25 )`
`= ( 19 + 4 )/24 - ( 49 + 51 )/25`

`= 23/24 - 100/25`

`= 23/24 - 4`

`= 23/24 - 96/24`

`= ( 23 - 96 )/24`

`= -( 73 )/24`

$\text{#lknhatminh0322}$