299除以(299+299/300)简便运算
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![299除以(299+299/300)简便运算](/uploads/image/z/4322193-33-3.jpg?t=299%E9%99%A4%E4%BB%A5%28299%2B299%2F300%29%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
299除以(299+299/300)简便运算
299除以(299+299/300)
简便运算
299除以(299+299/300)简便运算
=299÷[299*(1+1/300)]
=1÷(1+1/300)
=1÷(301/300)
=300/301
299/299(1+1/300)
=1/(1+1/300)
=300/301
1/(1+1/300)=300/301
300/301
倒过来算 然后分子分母颠倒一下就好了
299/299(1+1/300)
=1/(1+1/300)
=300/301
299/(299+299/300)
=299/(89700/300+299/300)
=299/(89999/300)
=299*(300/89999)
=300/301