Question

Walter and Denise ordered a dessert to share at a restaurant. If Denise ate 1 8 of the dessert and Walter ate 4 5 of the dessert, what fraction of the dessert was left over?

Answer 1

3/40

Explanation:

Walter and Denise ordered a dessert to share at a restaurant. If Denise ate 1/8 of the dessert and Walter ate 4/5 of the dessert, what fraction of the dessert was left over?

Let the total dessert be represented as = 1

The fraction of the dessert left over =

1 - (4/5 + 1/8)

Lowest Common Denominator = 40

1 - (4 × 8 + 1 × 5/40)

1 - (32 + 5/40)

1 - 37/40

Lowest Common Denominator = 40

40 × 1 - 37 × 1/40

40 - 37/40

= 3/40

Therefore, the fraction of dessert that is left over = 3/40