Tolong dibantu berikut caranya ya..! 1. (33 1/3 x 240) - ( 14 2/7 × 210) 2. N/8= 70/112 N =.... 3. 7/12= 53/N N =.... Terima kasih

nomor 1
=(33/3 × 240) - (28/7 × 210)
=(11 × 80) - (4 × 30)
= 880 - 120
= 760

nomor 2
N/8 = 70/112
112N = 8 × 70
112N = 560
N = 5

nomor 3
7/12 = 53/N
7N = 12 × 53
7N = 636
N =90,8

1.
= (100/3 × 240) - (100/7 × 210)
= (100 × 80) - (100 × 30)
= 8000 - 3000 = 5000

2.
= 112n = 70 × 8
112n = 560
n= 560/112
= 5

3.
= 7n = 53 × 12
7n= 636
n= 636/7
= 90 6/7
salah maaf....