Tính nhanh A = (4 5/17 – 3 1/5 + 6 17/28 ) – ( 3 5/17 + 6 3/28 ) 14/10/2021 Bởi Madelyn Tính nhanh A = (4 5/17 – 3 1/5 + 6 17/28 ) – ( 3 5/17 + 6 3/28 )
5 1 17 5 3 A = (4 __ -3__ + 6 ___) -( 3___+6___ ) 17 5 + 28 17 28 5 5 1 17 3 (4___ -3___ )-3___+(6____+6____) 17 17 5 28 28 1 =1-3___+13 5 1 =14-3___ 5 4 =10___ 5 Bình luận
5 1 17 5 3
A = (4 __ -3__ + 6 ___) -( 3___+6___ )
17 5 + 28 17 28
5 5 1 17 3
(4___ -3___ )-3___+(6____+6____)
17 17 5 28 28
1
=1-3___+13
5
1
=14-3___
5
4
=10___
5