Express -4/-7 as a rational numbers with denominator.

1. -28
2. 7
3. 35

Step-by-step explanation:

1. -28

-4/-7 × -1/4

4/7 × -1/4 = -4/28

2. 7

-4/-7 × 1/1

4/7 × 1/1 = 4/7

3. 35

-4/-7 × 1/5

4/7 × 1/5 = 4/35

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.