Question

Paul weighed two postcards before mailing them. They weighed 4/10 of an ounce and 42/100 of an ounce.

What is the total weight of the postcards?


38/100 oz

46/100 oz

46/110 oz

82/100 oz

Answer 1

82/100 oz

Explanation:

1) first, we need to find common denominators to add

4/10=40/100

42/100=42/100

2)next, we add

40/100+42/100=82/100

the total weight of the postcards is 82/100 oz