Chapter 9 Decimal Fractions Problem Set 39 Solutions

(1) 6 rupees 25 paise

(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

(1) 1 m 50 cm

(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

(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 . To convert this fraction into decimal form, the denominator of must be converted into an equivalent fraction with denominator 10.

so the decimal form of will be or 0.5 Just as = 0.5, note that = 0.50

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

A quarter
and Three quarters
One and a quarter = 1 = 1.25
One and a half = 1 = 1.50 = 1.5
One and three quarters = 1 = 1.75
Seventeen and a half = 17 = 17.50 = 17.5

Decimal Fractions Problem Set 37 Additional Important Questions and Answers

(1) 105 paise

(2) 6 rupees 6 paise
Answer:
₹ 6.06

(3) 20 rupees 20 paise
Answer:
₹ 20.2

(1) 110 cm =

(2) 60 cm =
Answer:
0.6 m

(2) 100 mm =
Answer:
10.0 cm