Question

Plis dng bsk dikumpul niii

Answer 1

1.
a. 5/6 +(9/8-3/4)
= 5/6 + (9/8-6/8)
= 5/6+3/8
= 20/24+9/24
= 29/24 =1 5/24

b. 11/4 +2/5-3/5
= 11/4-1/5
= 55/20-4/20
= 51/20 = 2 11/20

c.(8/3-1/4)+5/6
= (24/12-3/12) + 5/6
= 21/12 + 5/6
= 21/12+10/12
=31/12 = 2 7/12

d. 6/5 +(2/3 -6/15)
= 6/5 +(10/15-6/15)
= 6/5 + 4/15
= 18/15 + 4/15
= 22/15 = 1 7/15

2.
a.3/5×7/2 +3/5 ×23/2
= 21/10 + 69/10
= 90/10 = 9

b. 15/4 ×37/5-3/5×15/4
= 555/20 - 45/20
= 510/20 = 51/2 = 25 1/2

semoga membantu :)