Bonjour,
1)
7/12 - 5/12
= 2/12
= 1/6
2)
7/4 * 1/2 - 2/-18
= 7/8 + 1/9
3)
(7/12 )/( 5/6 + 3/6)
= (7/12)/ (8/6)
= (7/12 )/ 4/3
= 7/12 * 3/4
= 21 /48
4)
3/5 * 3/5 +5/6
9/25 +5/6
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Bonjour,
1)
7/12 - 5/12
= 2/12
= 1/6
2)
7/4 * 1/2 - 2/-18
= 7/8 + 1/9
3)
(7/12 )/( 5/6 + 3/6)
= (7/12)/ (8/6)
= (7/12 )/ 4/3
= 7/12 * 3/4
= 21 /48
4)
3/5 * 3/5 +5/6
9/25 +5/6