Question

Peter surveyed his family to see what they like to drink with breakfast. He found that 1/10 of the people like to drink grapefruit juice and 3/10 of them like to drink orange juice. What part of the people surveyed prefer grapefruit or orange juice with breakfast?Express your answer in simplest form.

Please Help Can't Figure It Out

Answer 1

4/10 of the surveyed people like either grapfruit or orange juice. Say the family has 10 members, and 1 person likes grapefruit, but then 3 other people like orange juice. That's 4 members out of 10.