Help
Add or subtract
a) 2/5+1/5
b) 2/3+5/7
c) 1/9-2/7

a. 3/5 b. 29/21 c. -11/63

Step-by-step explanation:

maths

50x5=$250

step-by-step explanation:

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb