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Charra [1.4K]
3 years ago
14

What is three fourths plus four fifths minus seven tenths

Mathematics
2 answers:
alina1380 [7]3 years ago
6 0

Answer:

0.85

Step-by-step explanation:

lidiya [134]3 years ago
3 0

Answer:

17/20

Step-by-step explanation:

3/4 + 4/5 - 7/10

1. Find the LCD (Least Common Denominator). The LCD is 20.

2. 20/4=5. 5*3=15. So, 3/4 becomes 15/20.

3. 20/5=4. 4*4=16. So, 4/5 becomes 16/20.

4. 20/10=2. 2*7=14. So, 7/10 becomes 14/20.

5. Your new equation is 15/20 + 16/20 - 14/20.

6. Solve from left to right.

7. 15/20 + 16/20= 31/20.

8. 31/20 - 14/20= 17/20.

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