Question

Completați pentru a face adevărate egalităție:​

Answer 1

Stim ca:

1 h=60 min

1 min=60 secunde

a)

270 min

270:60=4,5 h

$270\ min=4\frac{3}{6}= \frac{27}{6} \ h$

b)

55 min

55:60=0,91(6)

$55\ min=0\frac{55}{60}= \frac{11}{12} \ h$

c)

84 min

84:60=1,4 h

84 min=1 h 24 min

$84\ min=1\frac{24}{60} =1\frac{2}{5}\ h=\frac{7}{5}\ h$

d)

84 sec

84 s=1 min 24 s

$84\ s=1\frac{24}{60} =1\frac{2}{5}\ s=\frac{7}{5}\ s=\frac{28}{20}\ s$

e)

1304 s=21 min 44 s

$1304\ s=21\frac{44}{60} =\frac{1304}{60}\ min$

f)

$1\ h=\frac{1}{2}\ h+\frac{150}{5}\ min$

g)

$2\ h=1\frac{1}{2}\ h+\frac{600}{20}\ min$

Un alt exercitiu gasesti aici: https://brainly.ro/tema/935427

#SPJ1