Jawabanmu

2014-03-10T21:21:22+07:00
2 1/2 : 1 1/4 -2 1/8
=5/2 x 4/5 - 2 1/8
= 2 - 2 1/8
jadikan ke pecahan  biasa agar lebih mudah
=16/8 - 17/8 = -1/8
2 1 2
2014-03-10T21:21:44+07:00
2 1/2: 1 1/4 - 2 1/8
( \frac{5}{2} :  \frac{5}{4} ) -  \frac{17}{8}
= \frac{5}{2} *  \frac{4}{5} -  \frac{17}{8}
=1-2 1/8
=-1 1/8