Question

1. 1/4 jam = .... menit
2. 0,02 jam =..... detik
3. 4 1/5 menit = ....detik
4. 45 menit = …… jam
5. 2 1/4 jam = ….. detik

Answer 1

1)
1/4 jam
= (1/4 x 60) menit
= 15 menit

2)
0,02 jam
= (0,02 x 3.600) detik
= 72 detik

3)
4 1/5 menit
= (21/5 x 60) detik
= (21 x 12) detik
= 252 detik

4)
45 menit
= (45 : 60) jam
= (45:15)/(60:15) jam
= 3/4 jam