1个回答
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解:
78/76x71/77
=(77+1)/76x71/77
=77/76x71/77+1/76x71/77
=71/76+1/76x71/77
=70/76+1/76+1/76x71/77
=70/76+1/76x(77/77+71/77)
=70/76+1/76x178/77
=70x77/7(76x77)+178/(76x77)
=5390/5852+178/5852
=5568/5852
=5852分之5568
78/76x71/77
=(77+1)/76x71/77
=77/76x71/77+1/76x71/77
=71/76+1/76x71/77
=70/76+1/76+1/76x71/77
=70/76+1/76x(77/77+71/77)
=70/76+1/76x178/77
=70x77/7(76x77)+178/(76x77)
=5390/5852+178/5852
=5568/5852
=5852分之5568
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