Question

解方程：3(5X-5)=45 能简算的要简算：8分之5-4分之1×（9分之8÷3分之2）

45×44分之43

Answer 1

解方程：3(5X-5)=45
5x-5=15
5x=20
x=4

8分之5-4分之1×（9分之8÷3分之2）
=5/8 -1/4×4/3
=5/8-1/3
=15/24 -8/24
=7/24

45×44分之43
=(44+1)×43/44
=44×43/44 +1×43/44
=43+43/44
=43又43/44

Answer 2

3(5X-5)=45 5/8-1/4*(8/9÷2/3)
15x-15 =45 =5/8-1/4*(4/3)
15x =60 =5/8-1/3
x =4 =15/24-8/24
=7/24