Question

脱试计算.1— 3分之1—4分之1 20—4分之一乘5分之2 10除以9分之5—6分之一乘4 急用

Answer 1

1-1/3-14

=1-4/12-3/12

=1-7/12

=5/12

20-1/4x2/5

=20-1/10

=19.9

10÷5/9-1/6x4

=10x9/5-4/6

=18-2/3

=17又 1/3