Answer:
1/2
Step-by-step explanation:
1/5 equals 2/10, so:
? - 3/10 = 2/10
To go backwards, we must add 3/10 to 2/10 and it is equal to 5/10, or 1/2.
So, 1/2 or 5/10 - 3/10 = 2/10
Answer:
x = 1/2.
Step-by-step explanation:
x - 3/10 = 1/5
Multiply through by 10:
10x - 3 = 2
10x = 5
x = 1/2.
