Extra 10, 10 is half of what she ordered so she received an extra 50%
When dividing two fractions, it is important to know to multiply the first fraction by the reciprocal of the second fraction.
Reciprocal means basically a flipped fraction. 2/3 as a reciprocal is 3/2, etc.
1/3 / 1/2= 1/3 x 2/1=2/3
Answer:
x=0.2
Step-by-step explanation:
2/5=0.4
0.4-0.2=0.2