Question

12/5×(5/6+3/4)+1/5 简便计算

Answer 1

楼主你好！
运用公式：a(b+c)=ab+ac
和公式：a+b+c=a+(b+c)
所以原式等于：=12/5×5/6+12/5×3/4+1/5
=2+9/5+1/5
=2+10/5
=2+2
=4
O(∩_∩)O~
谢谢！

Answer 2

12/5×(5/6+3/4)+1/5
=12/5×5/6+12/5×3/4+1/5
=2+9/5+1/5
=2+10/5
=2+2
=4

Answer 3

12/5×(5/6+3/4)+1/5
=12/5×5/6+12/5×3/4+1/5
=2+9/5+1/5
=2+10/5
=2+2
=4

祝学习进步

Answer 4

原式=12/5×5/6＋12/5×3/4＋1/5
=2＋9/5＋1/5
=4

Answer 5

12/5×(5/6+3/4)+1/5

=12/5×(5/6+3/4)+12/5*1/12

=12/5*（5/6+3/4+1/12）
=12/5*20/12
=4