Toán bài 1: Tính a,3/5-5/6 b,-1/16-1/15 c,11/36- -7/24 d,-5/9- -5/12 22/09/2021 By Amaya bài 1: Tính a,3/5-5/6 b,-1/16-1/15 c,11/36- -7/24 d,-5/9- -5/12
$@Rí$ gửi Giải thích các bước giải: a) `3/5 – 5/6 ` = `18/30 – 25/ 30 = -7/30 ` b) `-1/16 – 1/15 ` = `-15/240 – 16/240 = -31/240 ` c) `11/36 – (-7/24) ` = `22/72 – (-21/72) =43/72 ` d) `-5/9 – (-5/12) ` = `20/36 – (-15/36) = 35/36 ` $Julri$ Trả lời
Bài 1 : a, 3/5 – 5/6 = 18/30 – 25/30 = – 7/30 b, – 1/16 – 1/15 = -15/240 – 16/240 = – 31/240 c, 11/36 – -7/24 = 11/36 – -7/24 = 22/72 – -21/72 = 11/24 Trả lời
$@Rí$ gửi
Giải thích các bước giải:
a) `3/5 – 5/6 ` = `18/30 – 25/ 30 = -7/30 `
b) `-1/16 – 1/15 ` = `-15/240 – 16/240 = -31/240 `
c) `11/36 – (-7/24) ` = `22/72 – (-21/72) =43/72 `
d) `-5/9 – (-5/12) ` = `20/36 – (-15/36) = 35/36 `
$Julri$
Bài 1 :
a, 3/5 – 5/6
= 18/30 – 25/30
= – 7/30
b, – 1/16 – 1/15
= -15/240 – 16/240
= – 31/240
c, 11/36 – -7/24
= 11/36 – -7/24
= 22/72 – -21/72
= 11/24