Question

A. (3/4+7/10)+2/5 =
b. 3/4+(7/10+2/5) =
Bagaimana hasil jawaban a dan b? Sifat apakah yang ditunjukkan diatas? Please jawab pake jalan yah ☺

Answer 1

Bagoes Dharma Jaya
B.) 3/4 + (7/10 + 2/5)
= 3/4 + ( 7/10 + 4/10)
= 3/4 + 11/10
= 15/20 + 22/20
= 37 / 20 (sampai sini juga sdh bnr)
= 1 17/20

B.) (3/4 + 7/10) + 2/5
= (15 / 20 + 14 /20) + 2/5
= 29/20 + 2/5
= 29/20 + 8/20
= 37/20 (sampai disini juga benar)
= 1 17/20

Sifatnya sama kayaknya.
Semoga Membantu

Answer 2

A.(3/4 + 7/10) + 2/5 =
(15/20 + 14/20) + 2/5 =
29/20 + 2/5 =
29/20 + 8/20 =
37/20 =
1 17/20

b. 3/4 + (7/10 + 2/5) =
3/4 + (7/10 + 4/10) =
3/4 + 11/10 =
15/20 + 22/20 =
37/20 =
1 17/20

sifat a dan b sama

semoga membantu :)