1. D
SOLUTION:
[tex] \frac{3}{5} + \frac{2}{10} = \frac{6 + 2}{10} = \frac{8}{10} \div 2 = \frac{4}{5} [/tex]
2. D
SOLUTION:
[tex] \frac{2}{3} - \frac{3}{5} = \frac{10 - 9}{15} = \frac{1}{15} [/tex]
3. B
SOLUTION:
[tex] \frac{3}{4} - \frac{1}{3} = \frac{9 - 4}{12} = \frac{5}{12} [/tex]
4. D
SOLUTION:
[tex] \frac{5}{6} + \frac{4}{9} = \frac{15 + 8}{18} = \frac{23}{18} = 1 \frac{5}{18} [/tex]
5. C
SOLUTION:
[tex] \frac{3}{5} + \frac{2}{5} = \frac{5}{5} = 1[/tex]
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Hope it helps:)
