yang nomor 3-10 kak tolong

no 3
5-1/4:3/5 
=5 - 1/4 x 5/3
=60/12 - 5/12
=55/12 = 4 7/12
no 4
3 x 4/7 - 1/2
=12/7 - 1/2
=24/14 - 7/14
=17/14
no 5
55% - 1/2 + 0,345 x 2
55/100 - 1/2 + 345/1000 x 2
=55/100 - 50/100 + 690/1000
=5/100 + 690/1000
=50/1000 + 690/1000
=740/1000 = 0,740
no 6
3 1/3 x 4/5 : 1/6
=10/3 x 4/5 : 1/6
=40/15 : 1/6
=40/15 x 6/1
=240/15=16
no 7
3/4 x 3,24 +5,13
= 3/4 x 324/100 + 513/100
= 972/400 + 513/100
= 972/400 + 2052/400
=3024/400=7 224/400
no 8
3 1/4 + (0,95 - 1/2) - 20%
=13/4 + (95/100 - 1/2 ) - 20/100
=13/4 + (95/100 - 50/100) - 20/100
=13/4 + 45/100 -20/100
=325/100 + 45/100 - 20/100
= 350/100 = 3 50/100 = 3 1/2
no 9
12 1/4 x 20% + 2 3/5
= 49/4 x 20/100 + 13/5
=980/400 + 13/5
=980/400 + 1040/400
=2020/400 = 5 20/400 =5 1/20
no 10
( 1/6 x 6/7 ) + 3/8
=6/42 + 3/8
=24/168 + 63/168
=87/168