maaf agak burem
kalau gak kebaca:
1.0,3+12%+2 1/5
0,3+12%+2 1/5=3/...+12/100+.../5
=.../100+12/100+.../100
=.../100+.../100+.../100=.../...=... .../...
2.15%+0,4+2 1/8
15%+0,4+2 1/8=.../.=.+4/...+.../8
=.../400+.../400+.../400
=...+...+.../400
=.../400
kalau gak kebaca:
1.0,3+12%+2 1/5
0,3+12%+2 1/5=3/...+12/100+.../5
=.../100+12/100+.../100
=.../100+.../100+.../100=.../...=... .../...
2.15%+0,4+2 1/8
15%+0,4+2 1/8=.../.=.+4/...+.../8
=.../400+.../400+.../400
=...+...+.../400
=.../400
Jawaban:
0,3+12%+2 1/5=3/10 +12/100+ 11/5
= 30/100+12/100+220/100
=30/100+12/100+220/100=262/100=131/50
= 2 31/50
15%+0,4+2 1/8
15%+0,4+2 1/8=15/100 + 4/10 + 17/8
=60/400+ 160/400+ 850/400
=60 + 160 +850/400
= 1.070/400
= 107/40
= 2 27/40