hasil dari1/2-1/3+1/3-1/6+1/4-1/12+1/5-1/30 adalah a.1/3 b.2/3 c.3/4 d4/5 pakai cara ya say

1/2 - 1/3 + 1/3 - 1/6 + 1/4 - 1/12 + 1/5 - 1/30
= 30/60 - 20/60 + 20/60 - 10/60 + 15/60 - 5/60 + 12/60 - 2/60
= 10/60 + 10/60 + 10/60 + 10/60 = 20/60 + 20/60 = 40/60 = 40 ÷ 10/ 60 ÷ 10 = 4/6 = 4 ÷ 2/ 6 ÷ 2 = 2/3
Maaf kalo salah

1x3-2x1/2x3+1/3-1/6+1/4-1/12+1/5-1/30=3-2/6+1/3-1/6+1/4-1/12+1/5-1/30=1/6+1/3-1/6+1/4-1/12+1/5-1/30=1/6+1x2/3x2-1/6+1/4-1/12+1/5-1/30=1/6+2/6-1/6+1/4-1/12+1/5-1/30=1+2/6-1/6+1/4-1/12+1/5-1/30=3/6-1/6+1/4-1/12+1/5-1/30=3-1/6+1/4-1/12+1/5-1/30=2/6+1/4-1/12+1/5-1/30=2x2/6x2+1x3/4x3-1/12+1/5-1/30=4/12+3/12-1/12+1/5-1/30=7/12-1/12+1/5-1/30=6/12+1/5-1/30=6x5+12x1/12x5-1/30=30+12/60-1/30=42/60-1x2/30x2=42/60-2/60=40:20/60:20=2/3
jadi jawabannya b.2/3