Verified answer

1) 2 teachers to 46 pupils

ratio:2:46

simplestform: 1:23

(G C F: 2) 2 ÷ 2 : 46 ÷ 2 = 1 : 23

2) 4 books to 10 students

ratio: 4:10

simplest form: 2:5

(G C F: 2) 4 ÷ 2 : 10 ÷ 2 = 2 : 5

3) 12 flowers to 4 vases

ratio: 12:4

simplest form: 3:1

(G C F: 4) 12 ÷ 4 : 4 ÷ 4 = 3 : 1

4) 21 garbage cans to 14 classroom

ratio: 21:14

simplest form: 3:2

(G C F: 7) 21 ÷ 7 : 14 ÷ 7 = 3 : 2

5) 36 glasses of juice to 30 sandwiches

ratio: 36:30

simplest form: 6:5

(G C F: 6) 36 ÷ 6 : 30 ÷ 6 = 6 : 5

Step-by-step explanation:

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