432-240=192
192 is the amount of shoes produced in 4 hours
194/4=48
48 is the amount of shoes products per hour
Regroup terms:
y - 2/9 ≤ 5/9
Add 2/9 to both sides:
y ≤ 5/9 + 2/9
Simplify 5/9 + 2/9 to 7/9:
y ≤ 7/9
Answer:
38= 2×19
39= 3×13
40= 2×2×2×5
hcf = highest common factor = 1
if you can't seen any common factor then write 1 , it's common in all.
if all the number divide by same number, then it's common in factor