Question

17 phần 12 + -1 phần 6 
 (3/8 + -3/4 + 7/12) :5/6 +1/2
2/3 - 0.25 : 3/4 +5/8 . (-2) mũ 2 
1/2 + 3/4 - (3/4-4/5)

Answer 1

a: =17/12-2/12=15/12=5/4

b: =(9/24-18/24+14/24)x6/5+1/2

=5/24x6/5+1/2

=1/4+1/2=3/4

c> =2/3-1/4x4/3+5/8x4

=2/3-1/3+5/2

=1/3+5/2

=2/6+15/6=17/6