Question

Hitunglah hasil dari

a.( 1 7/8 x 2 5/6) + (1 7/8 x 5 1/6)
b.(1 3/5 - 9/10) x (5/12 : 2 1/6)

Answer 1

A)
( 1 7/8 x 2 5/6)+(1 7/8 x 5 1/6)
= (15/8 x 17/6)+(15/8 x 31/6)
= (5/8 x 17/2)+(5/8 x 31/2)
= 85/16 + 155/16
= 240/16
= 15



b)
(1 3/5 - 9/10)x(5/12 : 2 1/6)
= (8/5 - 9/10)x(5/12 : 13/6)
= (16/10 - 9/10)x(5/12 x 6/13)
= 7/10 x 5/26
= 7/2 x 1/26
= 7/52