Question

Сократите дроби и запишите их в виде десятичных 21/35 12/30 45/50 18/90 56/80 9/12 21/60

Answer 1

21/35=3/5=0,6
12/30=4/10=0,4
45/50=9/10=0,9
18/90=1/5=0,2
56/80=7/10=0,7
9/12=3/4=0,75
21/60=7/20=0,35

Answer 2

Simplifying Fractions and Writing Them in Decimal Form

To simplify the given fractions and write them in decimal form:

1. 21/35: - To simplify 21/35, we can divide both the numerator and the denominator by their greatest common divisor, which is 7. - 21 ÷ 7 = 3 - 35 ÷ 7 = 5 - Therefore, 21/35 simplifies to 3/5, which in decimal form is 0.6.

2. 12/30: - To simplify 12/30, we can divide both the numerator and the denominator by their greatest common divisor, which is 6. - 12 ÷ 6 = 2 - 30 ÷ 6 = 5 - Therefore, 12/30 simplifies to 2/5, which in decimal form is also 0.4.

3. 45/50: - To simplify 45/50, we can divide both the numerator and the denominator by their greatest common divisor, which is 5. - 45 ÷ 5 = 9 - 50 ÷ 5 = 10 - Therefore, 45/50 simplifies to 9/10, which in decimal form is 0.9.

4. 18/90: - To simplify 18/90, we can divide both the numerator and the denominator by their greatest common divisor, which is 18. - 18 ÷ 18 = 1 - 90 ÷ 18 = 5 - Therefore, 18/90 simplifies to 1/5, which in decimal form is 0.2.

5. 56/80: - To simplify 56/80, we can divide both the numerator and the denominator by their greatest common divisor, which is 8. - 56 ÷ 8 = 7 - 80 ÷ 8 = 10 - Therefore, 56/80 simplifies to 7/10, which in decimal form is 0.7.

6. 9/12: - To simplify 9/12, we can divide both the numerator and the denominator by their greatest common divisor, which is 3. - 9 ÷ 3 = 3 - 12 ÷ 3 = 4 - Therefore, 9/12 simplifies to 3/4, which in decimal form is 0.75.

7. 21/60: - To simplify 21/60, we can divide both the numerator and the denominator by their greatest common divisor, which is 3. - 21 ÷ 3 = 7 - 60 ÷ 3 = 20 - Therefore, 21/60 simplifies to 7/20, which in decimal form is 0.35.