Bantuin dong yang nomor 7 makasih

7.)3¼-(1½:1 1/5)
=13/4-5/4
=8/4
=2
Semoga Membantu..

7. 3 1/4 - ( 1 1/2 : 1 1/5 )
= 13/4 - ( 3/2 : 6/5 )
= 13/4 - ( 3/2 x 5/6 )
= 13/4 - 15/12
= 39/12 - 15/12
= 24/13
= 1 11/13