Question

1.)4 2/5+1 2/3=.....

2)2 3/4+4 2/5=...
3)1 1/2-2/3=....
4)1 1/2+0,25-45persen =...
5)2,5+3/4+75peersen=...
6)12 2/3-7 2/9+2 2/5=...

Answer 1

1.)4 2/5+ 1 2/3=22/5+5/3=66/15+25/15=91/15=6 1/15
2.)2 3/4 +4 2/5 =11/4+22/5=55/20+88/20=143/20=7 3/20
4.) 1 1/2+0.25-45%=3/2+25/100-45/100=
25/100:5/5=5/20
45/100:5/5=9/20
jadi=3/2+5/20+9/20=30/20+5/20+9/20=44/20=2 4/20
3.)1 1/2 - 2/3 =3/2 - 2/3=9/6 - 4/6=5/6= 1 1/6
5.)2.5+3/4+75%=25/10+3/4+75/100
25/10:5/5=5/2
75/100:5/5=15/20:5/5=3/4
jadi:5/2+3/4+3/4=20/8+6/8+6/8=32/8:4/4=8/2:2/2=4
6.)12 2/3-7 2/9+2 2/5=38/3-62/9-12/5=570/45-310/45-108/45
=152/45=3 17/45
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