Final answer:
Chelsea can make 3.5 batches of icing using 7/8 pound of butter.
Step-by-step explanation:
To find out how many batches of icing Chelsea can make with 7/8 pound of butter, we need to divide 7/8 by 1/4. Dividing fractions involves multiplying the numerator of the first fraction by the reciprocal of the second fraction. So, 7/8 ÷ 1/4 is equal to 7/8 * 4/1 = 7 * 4 / 8 * 1 = 28/8 = 3.5. Therefore, Chelsea can make 3.5 batches of icing with 7/8 pound of butter.