各數(fast)@@@@!!!!!!^%^%$^$^%

1.13又15分之7-6又15分之11-2

A. 13又15分之7 - 6又15分之11 - 2
= 202/15 - 101/15 – 30/15
= (202-101-30)/15
= 71/15
= 4又15分之11

2.11-9又5分之4+2又5分之1

A. 11-9又5分之4+2又5分之1
= 55/5 - 49/5 + 11/5
= (55-49+11)/5
= 17/5
= 3又5分之2

3.大至小排列, 5.174, 51.47, 5.741, 5.147

A. 51.47, 5.741, 5.174, 5.147

4.小至大排列,7.361, 7.136, 7.316, 7.613

A. 7.136, 7.316, 7.361, 7.613

5.36又10分之7-3又10分1

A. 36又10分之7-3又10分1
= 367/10 - 31/10
= (367-31)/10
= 336/10
= 33又5分之3

6.8又5分之1-1又5分之3-5分之4

A. 8又5分之1-1又5分之3-5分之4
= 41/5 – 8/5 – 4/5
= (41-8-4)/5
= 29/5
= 5又5分之4

7.5又9分之5+8又9分之7 (要步抓)

A. 5又9分之5+8又9分之7
= 50/9 + 79/9
= (50+79)/9
= 129/9
= 14又3分之1

8.10-1又7分之3-4又7分之2(要步抓)

A.10 - 1又7分之3-4又7分之2
= 70/7 – 10/7 – 30/7
= (70-10-30)/7
= 30/7
= 4又7分之2