1). ⁵ 6/7 + ⁶1/2 =
2). ³ 3/4 - ²1/2 =
3). ⁵ 3/6 + ³ 1/2 + ⁴ 1/4 =
4). ( ⁷ 5/10 - ⁵ 7/8) + ² 3/5 =
5). ( ⁶ 2/4 + ⁴ 6/8) - ⁷ 1/2 =
Penjelasan dengan langkah-langkah:
1.) (5 6/7) + (6 1/2)
=> ({5}+ 6/7) + ([ 6] + 1/2)
=> ({35/6}+6/7) + ([12/2]+1/2)
=> (41/7) + (13/2)
=> (41/7 × 2/2) + (13/2 × 7/7)
=> (82/14) + ( 91/14)
=> (173/14)
2.) caranya sama seperti nomer 1
(3 3/4) - (2 1/2)
=> ( 12/4 + 3/4) - (4/2 + 1/2)
=> 15/4 + 5/2
( disamakan penyebutnya)
=> 15/4 + (5/2 × 2/2)
=> 15/4 + (10/4)
=> 25/4
3.) 5 3/6 + 3 1/2 + 4 1/4
=> (30/6 + 3/6) + (6/2 + 1/2) + (16/4 + 1/4)
=> (33/6) + (7/2) + (17/4)
=> (33/6) + (7/2 × 3/3) + (17/4 × 0,5/0,5)
=> (33/6) + (21/6) + (25,5/6)
=> agar tidak ada desimal maka kalikan 2 semuanya
=> (54/6 + 25,5/6) × 2/2
=> (79,5/6) × 2/2
=> (159/12)
4.) (7 5/10 - 5 7/8) + 2 3/5
=> ( ( 70/10 + 5/10) - (40/8 + 7/8) ) focus ke itu dulu
=> ( (75/10) - (47/8) )
dengan disamakan penyebutnya
=> ( (75/10 × 8/8) - (47/8 × 10/10) )
=> ( (600/80) - (470/80) )
=> ( (130/80) ) + 2 3/5
=> ( (130/80) ) + ( 10/5 + 3/5)
=> ( (130/80) ) + ( 13/5)
=> ( (130/80) ) + (13/5 × 16/16)
=> ( (130/80) ) + (208/80)
=> (338/80) disederhanakan
=> 169/40
yg nomer 5 akan saya lanjut nanti
5.) ( (6 2/4) + (4 6/8) ) - 7 1/2
=> ( (6 2/4) + (4 6/8) ) focus ke itu dulu
=> ( ( 24/4 + 2/4) + (32/8 + 6/8) )
=> ( (26/4) + (38/8) ) disamakan penyebutnya
=> ( (26/4 × 2/2) + (38/8) )
=> ( (52/8) + (38/8) )
=> ( (90/8) )
=> ( (90/8) ) - 7 1/2
=> ( (90/8) ) - (14/2 + 1/2)
=> ( (90/8) ) - (15/2)
=> ( (90/8) ) - (15/2 × 4/4) disamakan penyebut
=> ( (90/8) ) - (60/8)
=> (30/8) di sederhanakan
=> (15/4)
[answer.2.content]
