作业帮567+345*566/567*345+222=帮忙吧
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567+345*566/567*345+222=帮忙吧
567+345*566/567*345+222=
帮忙吧
567+345*566/567*345+222=帮忙吧
567+345*566/567*345+222
=(345+345*566+222)/(567*345+222)
=(345*567+222)/(567*345+222)
=1