Explications étape par étape:
bsr
ex 1 )
-5/7 + 4/21 = -15+4 / 21 = -11/21
5/72 - 1/9 = 5-8/72 = -3/72 = -1/24
2/3*1/8 = 2/24 = 1/12
-7/9 + 6/-14 = -49-27/63 = -76/63
1/6+1/6*7/2 = 1/6 + 7/12 = 2+7/12 = 9/12 = 3/4
ex 2 )
10⁷ = 10000000
10-⁵ = 0.00001
1/10⁴ = 0.0001
10-¹⁵ * 10 ¹¹ = 10-⁴ = 0.0001
10¹⁶/10⁹ = 10⁷ = 10000000
10²*³ = 10⁶ = 1000000
bonne soirée
