22/7*7/2-21/4*21/4+7/2*12/11
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Answer:
22/7 *7/2=11
-21/4*21/4=-441
7/2*12/11=42/11
so, 11-441+42/11
Lcm is 11
=((11*11+42)/11)-441
=(121+42)/11 - 441
=163/11 - 441
=14.8... - 441
=15(approxmiately) - 441
=-426
Step-by-step explanation:
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