Bonjour,
I)
- 12/-21 - 14/21 = 12/21 -14/21 = -2/21
J)
-3/2 -(-3/5) =
-3/2 +3/5
-15/10 + 6/10 = -9/10
k)
70/-240 -( 216/ 240) =
-70/240 + 216/ 240 =146/240 = 73/120
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Bonjour,
I)
- 12/-21 - 14/21 = 12/21 -14/21 = -2/21
J)
-3/2 -(-3/5) =
-3/2 +3/5
-15/10 + 6/10 = -9/10
k)
70/-240 -( 216/ 240) =
-70/240 + 216/ 240 =146/240 = 73/120