Mengurangi pecahan Tolong Di jawab ya kakk

nomor 4. 17 per 60

maaf 1 dan maaf kalo salah

Jawaban:

1.7/12 + 5/18

= (7/12 x 3/3) + (5/18 x 2/2)

= 21/36 + 10/36

= 31/36

2.2/3 + 5/6 + 3/8

= (2/3 x 8/8) + (5/6 x 4/4) + (3/8 x 3/3)

= 16/24 + 20/24 + 9/24

= 45/24

= 1 7/8

3.4/5 – 4/7

= (4/5 x 7/7) – (4/7 x 5/5)

= 28/35 – 20/35

= 8/35

4.5/6 – 3/10 – 1/4

= (5/6 x 10/10) – (3/10 x 6/6) – (1/4 x 15/15)

= 50/60 – 18/60 – 15/60

= 17/60