Question

PAGE NO
from
5 hours 20 minutes 36 seconds.
Subtract 2 hours hominutes 40 seconds-​

Answer 1

Answer:

. Subtract 24 hr. 15 min. 38 sec. from 45 hr. 20 min. 54 sec.

Subtraction of Hours

We subtract hours, minutes and seconds respectively.

2. Subtract 5 hr. 16 min. 48 sec. from 12 hr. 28 min. 16 sec.

Subtraction of Hours and Minutes

16 sec. < 48 sec.

So, we borrow 1 min.

= 60 sec. From 28 min.

60 sec. + 16 sec. = 76 sec.

76 sec. – 48 sec. = 28 sec.

3. Subtract 14 hr. 46 min. 32 sec. from 22 hr. 28 min. 17 sec.

Subtracting Time

17 sec. < 32 sec.

So, we borrow 1 min.

= 60 sec. from 28 min.

60 sec. + 17 sec. = 77 sec.

77 sec. – 32 sec. = 45 sec.

27 min < 46. So we borrow 1 hr.

= 60 min . from 22 hr.

60 min. + 27 min. = 87 min.

87 min – 46 min. = 41 min.

4. Subtract 20 hr. 52 min. 46 sec. from 40 hr. 19 min. 20 sec.

Subtract Hours Minutes

20 sec. < 46 sec.

So, we borrow 1 min.

= 60 sec. from 19 min.

60 sec. + 20 sec. = 80 sec.

80 sec. - 46 sec. = 36 sec.

18 min < 52 min.

So we borrow 1 hr.

= 60 min . from 40 hr.

60 min. + 18 min. = 78 min.

78 min - 52 min. = 26 min.