Toán Lớp 7: a,1/24 – 5/18
b,(19/5-1/5).3/5-1/5.(-2/3)^2
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Toán Lớp 7: a,1/24 – 5/18
b,(19/5-1/5).3/5-1/5.(-2/3)^2
Comments ( 2 )
Chúc bạn học tốt nha ????????????????????????????
@phatnguyen330
a)
1/24 -5/18
=18/432 -120/432
=-102/432
=-17/12
b)
(19/5 -1/5). 3/5-1/5.(-2/3)^2
=18/5. 3/5-1/5. 4/9
=54/25-4/45
=2430/1125-100/1125
=2330/1125
=466/225
$\huge\color{red}{\text{Masonn}}$