maths

1. 1.25 : (3+1/3) ＝ ?
Sol:
1.25 : (3+1/3)
＝ 5/4 : 10/3
＝ 15 : 40
＝ 3 : 8
Ans: 3 : 8
2. 40mins : (2+1/2hrs) ＝ ?
Sol:
40mins : (2+1/2hrs)
＝ 2/3hr : 5/2hrs
＝ 4 : 15
Ans: 4 : 15
Send me a letter if any steps you don’t understand.

1.
25:3又3分1
=3:8

2.
40mins:(2又2分1 hours )
= 4:15