(-1/4) x (-2/13) -7/24 x (-2/13)
(-1/27)x3/7+ 5/3 x (-3/7)
(-1/5 +3/7) : 2/11 + (-4/5 +4/7 ) : 2/11
3 x (-2/3)^3 + 3,15 -13/3 : 3/2
45^10 x 5^ 20 / 75^15
2^15 x 9^4 /6^6 x 8^3
(-1/4) x (-2/13) -7/24 x (-2/13)
(-1/27)x3/7+ 5/3 x (-3/7)
(-1/5 +3/7) : 2/11 + (-4/5 +4/7 ) : 2/11
3 x (-2/3)^3 + 3,15 -13/3 : 3/2
45^10 x 5^ 20 / 75^15
2^15 x 9^4 /6^6 x 8^3
@Bơ
`(-1/4) .(-2/13) -7/24 . (-2/13)`
`=(-2/13). (-1/4-7/24)`
`=(-2/13).{-13}/{24}`
`=1/2`
`(-1/27)x3/7+ 5/3 x (-3/7)`
`=-1/{63}+{-5}/7`
`=-{46}/{63}`
`(-1/5 +3/7) : 2/11 + (-4/5 +4/7 ) : 2/11`
`=8/{35}.{11}/2+{-8}/{25}.{11}/2`
`=({8}/{35} -{-8}/{25}).{11}/2`
`=0.{11}/2`
`=0`
`3 x (-2/3)^3 + 3,15 -13/3 : 3/2`
`=3 x(-8/27) + 63/20 -13/3 .2/3`
`=-8/9+ 63/20 – 26/9`
`={-113}/{180}`