Hasil pengerjaan dari 3/4+2,5-1 2/5 adalah

=3/4+25/10-7/5
=15/20+50/20-28/30
=65/20-28/20
=37/20

Jb :

[tex] \frac{3}{4} + 2.5 - 1 \frac{2}{5} \\ =( \frac{3}{4} + \frac{25}{10}) - \frac{7}{5} \\ = (\frac{15}{20} + \frac{50}{20}) - \frac{7}{5} \\ = \frac{65}{20} - \frac{7}{5} \\ = \frac{65}{20} - \frac{28}{20} \\ = \frac{37}{20} \\ = 1 \frac{17}{20} [/tex]
I hope this Helps