a,\(\dfrac{37}{12}-3=\dfrac{37}{12}-\dfrac{3}{1}=\dfrac{37}{12}-\dfrac{36}{12}=\dfrac{1}{12}\)
b,\(\dfrac{4}{5}x\dfrac{6}{7}=\dfrac{24}{35}\)
15237
+ 6542
----------
21779
b, 3444 l 28
64 l ------------
84 l 123
0
Câu `6:`
`a)37/12-3=37/12-36/12=1/12`
`b)4/5xx6/7=24/35`
Câu `7:`
`a)`
`15237`
`+`
`6542`
___________________
`21779`
`b)`
`3444``|`__`28`__
`64` `| 123`
`84`
`0`