Addition - Fractions, Difficulty Level =4

$\frac{12}{16}+\frac{3}{7}=$	$\frac{1}{5}+\frac{2}{19}=$	$\frac{13}{18}+\frac{6}{18}=$	$\frac{4}{11}+\frac{7}{12}=$
$\frac{10}{11}+\frac{13}{14}=$	$\frac{10}{11}+\frac{6}{11}=$	$\frac{4}{13}+\frac{7}{12}=$	$\frac{9}{12}+\frac{8}{15}=$
$\frac{10}{20}+\frac{5}{17}=$	$\frac{5}{16}+\frac{17}{20}=$	$\frac{4}{16}+\frac{13}{19}=$	$\frac{2}{20}+\frac{18}{20}=$
$\frac{6}{20}+\frac{12}{17}=$	$\frac{2}{8}+\frac{15}{18}=$	$\frac{3}{17}+\frac{1}{11}=$	$\frac{16}{19}+\frac{9}{15}=$

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