Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 9 Decimal Fractions Problem Set 39 Textbook Exercise Important Questions and Answers.

## Maharashtra State Board Class 5 Maths Solutions Chapter 9 Decimal Fractions Problem Set 39

Question 1.

Write how many rupees and how many paise.

(1) ₹ 58.43

Answer:

58 rupees 43 paise.

(2) ₹ 9.30

Answer:

9 rupees 30 paise.

(3) ₹ 2.30

Answer:

2 rupees 30 paise.

(4) ₹ 2.3

Answer:

2 rupees 30 paise.

Question 2.

Write how many rupees in decimal form.

(1) 6 rupees 25 paise

Answer:

₹ 6.25

(2) 15 rupees 70 paise

Answer:

₹ 15.70

(3) 8 rupees 5 paise

Answer:

₹ 8:05

(4) 22 rupees 4 paise

Answer:

₹ 22.04

(5) 720 paise

Answer:

₹ 7.20

Question 3.

Write how many metres and how many centimetres.

(1) 58.75 m

Answer:

58 m 75 cm

(2) 9.30 m

Answer:

9 m 30 cm

(3) 0.30 m

Answer:

30 cm

(4) 0.3 m

Answer:

30 cm

(5) 1.62 m

Answer:

1 m 62 cm

(6) 91.4 m

Answer:

91 cm 40 cm

(7) 7.02 m

Answer:

7 m 2 cm

(8) 0.09 m

Answer:

9 cm

Question 4.

Write how many metres in decimal form.

(1) 1 m 50 cm

Answer:

1.5 m

(2) 50 m 40 cm

Answer:

50.40 m

(3) 50 m 4 cm

Answer:

50.04 m

(4) 734 cm

Answer:

7.34 m

(5) 10 cm

Answer:

0.1 m

(6) 2 cm

Answer:

0.02 m

Question 5.

Write how many centimetres and how many millimetres.

(1) 6.9 cm

Answer:

6 cm 9 mm

(2) 20.4 cm

Answer:

20 cm 4 mm

(3) 0.8 cm

Answer:

8 mm

(4) 0.5 cm

Answer:

5 mm

Question 6.

Write how many centimetres in decimal form.

(1) 7 cm 1 mm

Answer:

7.1 cm

(2) 16 mm

Answer:

1.6 cm

(3) 144 mm

Answer:

14.4 cm

(4) 8 mm

Answer:

0.8 cm

Writing half, quarter, three-quarters and one and a quarter in decimal form

‘Half’ is usually written as \(\frac{1}{2}\). To convert this fraction into decimal form, the denominator of \(\frac{1}{2}\) must be converted into an equivalent fraction with denominator 10.

\(\frac{1}{2}=\frac{1 \times 5}{2 \times 5}=\frac{5}{10}\) so the decimal form of \(\frac{1}{2}\) will be \(\frac{5}{10}\) or 0.5 Just as \(\frac{1}{2}=\frac{1 \times 5}{2 \times 5}=\frac{5}{10}\) = 0.5, note that \(\frac{1}{2}=\frac{1 \times 50}{2 \times 50}=\frac{50}{100}\) = 0.50

Therefore, ‘half’ is written as ‘0.5’ or 0.50’. ‘Quarter’ and ‘three quarters’ are written in fractions as \(\frac{1}{4}\) and \(\frac{3}{4}\) respectively. Let us convert them into decimal fractions. 10 is not divisible by 4. Therefore, the denominators of \(\frac{1}{4}\) and \(\frac{3}{4}\) cannot be made into fractions with multiples of 10. However, 4 × 25 = 100, so the denominator can be 100.

A quarter \(=\frac{1}{4}=\frac{1 \times 25}{4 \times 25}=\frac{25}{100}=0.25\)

and Three quarters \(=\frac{3}{4}=\frac{3 \times 25}{4 \times 25}=\frac{75}{100}=0.75\)

One and a quarter = 1 \(\frac{1}{4}\) = 1.25

One and a half = 1 \(\frac{1}{2}\) = 1.50 = 1.5

One and three quarters = 1 \(\frac{3}{4}\) = 1.75

Seventeen and a half = 17 \(\frac{1}{2}\) = 17.50 = 17.5

**Decimal Fractions Problem Set 37 Additional Important Questions and Answers**

Question 1.

Write how many rupees and how many paise.

(1) ₹ 147.5

Answer:

1 hundred and 47 rupees 50 paise.

(2) ₹ 40.4

Answer:

40 rupees and 40 paise.

Question 2.

Write how many rupees in decimal form.

(1) 105 paise

Answer:

₹ 1.05

(2) 6 rupees 6 paise

Answer:

₹ 6.06

(3) 20 rupees 20 paise

Answer:

₹ 20.2

Question 3.

Write how many metres and how many centimetres.

(1) 1.1m =

Answer:

1 m 10 cm

(2) 120 cm =

Answer:

1 m 20 cm

(3) 24.8 m =

Answer:

24 m 80 cm

(4) 0.5 m =

Answer:

50 cm

Question 4.

Write how many metres in decimal form.

(1) 110 cm =

Answer:

1.1m

(2) 60 cm =

Answer:

0.6 m

Question 5.

Write how many centimetres and how many millimetres.

(1) 0.1 cm =

Answer:

1 mm

(2) 10.5 cm =

Answer:

10 cm 5 mm

Question 6.

Write how form. many centimetres in decimal

(1) 1 mm =

Answer:

0.1 cm

(2) 100 mm =

Answer:

10.0 cm