Answer:
22/40
Explanation:
find the equivalent ratio of 4 and 10 and it is 40 so the then you multiply 4 times 10 and 10 times 4 then you multiply 1x10 and 10x4 so now your new problem will be
10/40+12/40 which is 22/40=1 8/15
3.6m questions
4.6m answers