递等式计算:11又1/9÷[7.35-5又1/12)÷1.2]+82.5×3/5

问题描述:

递等式计算:11又1/9÷[7.35-5又1/12)÷1.2]+82.5×3/5

11又1/9÷[7.35-5又1/12)÷1.2]+82.5×3/5
=11又1/9÷[34/15÷1.2]+82.5×3/5
=100/9÷17/9+82.5×3/5
=100/17+49.5
=55又13/34