Question

1. 5 12/24 - 3 11/12 + 11/18 =
2.8 2/6 x 3 6/10 : 12/15 =
3.12 2/4 x 10 =
4.Luas persegi panjang 10 4/8 cm2
Lebar persegi panjang 3 4/12 cm
Berapa cm panjang persegi panjang tersebut?
5.Panjang AD = 12 4/5
Panjang CD = 3 1/8
Panjang BD = 6 3/4
Berapakah panjang BC dan AB?

Pakai cara ya pliss

Answer 1

1. 5 12/24 - 3 11/12 + 11/18 = 27/72 - 29/72 - 15/72
= 27/72 - 14/72
= 13/72
2. 8 2/6 X 3 6/10 : 12/15 =
(50/6 X 36/10) : 12/15
= 1800/60 : 12/15
=1800/70 X 15/12
= 27000/720
= 37 360/720 = 37½
3. 12²/4 X 10 = 50/4 X 10
= 500/4
= 125
4. 10 4/8 : 3 4/12 =
84/8 : 40/12
= 84/8 X 12/40
= 1008/32 = 31 16/32
= 31½
5. sory nomor 5 ga tau.