46×44分之7+126 59×58分之7+57×58分之5 简便算法

46×44分之7+126 59×58分之7+57×58分之5
2025-02-25 02:59:32
推荐回答(1个)
回答1:

46×44分之7+126
=44×7/44+2×7/44+126
=44+7/22+126
=170又7/22

59×58分之7+57×58分之5
=(58+1)×58分之7+(58-1)×58分之5
=7+7/58+5-5/58
=12 +1/29
=12又1/29