Pecahan dari : 1. 2 1/4 + 3 2/5 = 2.4 - 2 1/5 = 3.2 3/4 : 1 2/5 =

[tex]1)2 \frac{1}{4} + 3 \frac{2}{5} \\ = \frac{9}{4} + \frac{17}{5} \\ = \frac{45}{20} + \frac{68}{20} \\ = \frac{113}{20} = 5 \frac{13}{20 } \\ 2)4 - 2 \frac{1}{5} \\ = 4 - \frac{11}{5} \\ = 4 - 2.2 \\ = 1.8 =14/5\\
3)2 \frac{3}{4} \div 1\frac{2}{5} \\ = \frac{11}{4} \div \frac{7}{5} \\ = \frac{11}{4} \times \frac{5}{7} \\ = \frac{55}{28} [/tex]