hitunglah pecahan berikut! yang udh jawab makasih

1)1/2+2/4+4/8
=4/8+4/8+4/8
=12/8=3/2=1 1/2
2)5/8-1/4+2/12
=15/24-6/24+4/24
=13/24
3)50%+1/4-0,125
=500/1000+250/1000-125/1000
=625/1000=0,625
4)0,149+0,42-1/2
=0,149+0,42-0,5
=0,569-0,5
=0,069
5)60%-20%+0,25
=60%-20%+25%
=65%