2 1 per 4 +7,5+75%= no 2 sama 3

Aku cuma bisa no 2... maaf jika kurang jelas...

1).2 1/4+7,5+75%
=9/4+75/10+75/100
=225/100+750/100+75/100(samakan penyebut)
=1.050/100
=10 50/100
=10 1/2

2).4 3/2 x 5 1/3+2 1/3
=11/2 x 16/3+7/3
=176/6+7/3
=176/6+14/6
=190/6
=31 4/6