Testing Theme: 5th Maths Term 2 Unit 5: Using Fractions in Units of Length, Time, and Money

Use Fractions in Context of Length, Time and Money | 5th Maths

Chapter: 5th Maths : Term 2 Unit 5 : Interconcept

Use fractions in the context of units of length, time and money

Length (In fractions)

Example
2 Km 500 m = 2 ½ Km
1 Km 250 m = 1 ¼ Km
7 Km 750 m = 7 ¾ Km
8 Km 500 m = 8 ½ Km

Let us know
1 Km = 1000 m
½ Km = 500 m
¾ Km = 750 m
¼ Km = 250 m

Time (In fractions)

15 minutes = ¼ Hour
30 minutes = ½ Hour
45 minutes = ¾ Hour
60 minutes = 1 Hour

$Clock illustration showing fractions of time$

$ 1/4 \times 60 = 60/4 = 15 $ minutes
$ 1/2 \times 60 = 60/2 = 30 $ minutes
$ 3/4 \times 60 = 180/4 = 45 $ minutes
$ 1 \times 60 = 60 $ minutes

Let us know
60 minutes = 1 Hours
Half part of 60 minutes = 30 minutes
Quarter part of 60 minutes = 15 minutes
There Quarter part of 60 minutes = 45 minutes

Examples

1. Convert into minutes

a) 2 Hour = 2 × 60 = 120 minutes 1 Hour = 60 minutes

b) 3 Hour 20 minutes = (3 × 60) + 20 = 200 minutes

c) 4 Hour = 4 × 60 = 240 minutes

d) 5 Hour 15 minutes = (5 × 60) + 15 = 300 + 15 = 315 minutes

2. Convert in to hours

a) 42 minutes

42 × 1/60 = 42/60 = 7/10 Hour

b) 55 minutes

55 × 1/60 = 55/60 = 11/12 Hour

Money [In fractions]

Example
In ₹ 1
¼ part of ₹ 1 = 25 paise Quarter part of ₹ 1 = 25 paise ½ part of ₹ 1 = 50 paise Half part of ₹ 1 = 50 paise ¾ part of ₹ 1 = 75 paise Three quarter part of ₹ 1 = 75 paise 1 part of ₹ 1 = 100 paise Full part of ₹ 1 = 100 paise

Example
In ₹ 100
¼ part of ₹ 100 = ₹ 25 Quarter part of ₹100 = ₹ 25 ½ part of ₹ 100 = ₹ 50 Half part of ₹100 = ₹ 50 ¾ part of ₹ 100 = ₹ 75 Three quarter part of ₹100 = ₹ 75 1 part of ₹ 100 = ₹ 100 Full part of ₹100 = ₹100

Example
In ₹ 2000
¼ part of ₹2000 = ₹500 Quarter part of ₹2000 = ₹500 ½ part of ₹2000 = ₹1000 Half part of ₹2000 = ₹1000 ¾ part of ₹2000= ₹1500 Three quarter part of ₹2000= ₹1500 1 part of ₹2000 = ₹2000 Full part of ₹2000 = ₹2000