plz ans it as fast as you can
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Answer:
181/21
Step-by-step explanation:
1/21+[2/3of15+{7/6÷49/4-(5/9×36/45+5/9)}]
=1/21+[2/3of15+{7/6÷49/4-(4/9+5/9)}]
=1/21+[2/3of15+{7/6÷49/4-1}]
=1/21+[2/3of15+{7/6×4/49-1}]
=1/21+[2/3of15+{2/21-1}]
=1/21+[2/3of15-19/21]
=1/21+[10-19/21]
=1/21+181/21
=181/21
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