Klo udh dpt hasilnya tolong ke desimal kan dan ke persen... Tolong d jwb pke caranya ya ka... Terimakasih

10 - 7 12/15
= 9 15/15 - 7 12/15
= 2 3/15
= 33/15
= 2,2
% = 33/15 × 100/100
= 3.300/15
= 22/100
4 1/5 - 2 7/8
= 4 - 2 ( 1/5 - 7/8 )
= 2 + ( 8/40 - 35/40 )
= 1 + ( 40/40 + 8/40 - 35/40 )
= 1 + ( 48/40 - 35/40 )
= 1 + 13/40
= 1 13/40
= 53/40
= 1,325
% = 53/40 × 25
= 1.325/1000 ÷ 10
= 132,5/100