Question

76м39см+41м58см 64м86см+27м45см 12ч24мин+9ч18мин

Answer 1

Ответ:

117м97см

92м31см

21ч42мин

Answer 2

Ответ:

1. 117м 97см

2. 92м 31 см

3. 21ч 42 мин

Answer 3

To perform these addition operations, we need to make sure the units are consistent. We will convert everything to the same units before adding.

76m39cm + 41m58cm = 118m97cm We can't have 97cm, so we'll carry over the excess to the meter place: 118m 97cm = 119m - 3cm Therefore, 76m39cm + 41m58cm = 119m - 3cm

64m86cm + 27m45cm = 92m31cm

12h24min + 9h18min = 21h42min

So, the final result is: 119m - 3cm + 92m31cm + 21h42min.

However, we can't add meters and minutes together. We need to convert the hours and minutes into a decimal form, where 1 hour equals 60 minutes.

21h42min = 21 + 42/60 = 21.7 hours

Now we can add everything together:

119m - 3cm + 92m31cm + 21.7h = (119 + 92) m - 3cm + 31cm + 21.7h = 211m 28cm + 21.7h

So the final answer is 211m 28cm + 21.7 hours.