zitterkoph
24.04.2020 •
Mathematics
21.3
.4.
15
Problem 5
(from Unit 3, Lesson 1)
Calculate and express your answer in decimal form.
1. 12:17
2. 34-200
3. (0.2)-40
4. (0.25)-60
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Ответ:
3 6/4 or 18/4
Step-by-step explanation:
1 3/4+2 3/4= 1+2 and 3/4+3/4
1+2=3
3/4+3/4= (3+3= 6 )6/4
3+6/4= 3 6/4 or 18/4
STUDENTS MISTAKE:
they added the denominators