jangan lupa pakai cara ya Kak kalau bisa ditulis di kertas terus difoto tapi kalau nggak mau juga nggak apa-apa diketik aja ​

1. 1/4 + 1/2 – 1/8

= (1/4 + 1/2) – 1/8

= (1/4 + 2/4) – 1/8

= 3/4 – 1/8

= 6/8 – 1/8

= 5/8

2. 3/4 – 1/2 + 1/4

= (3/4 – 1/2) + 1/4

= (3/4 – 2/4) + 1/4

= 1/4 + 1/4

= 2/4

3. 4/7 – 1/4 : 1/2

= (4/7 – 1/4) : 1/2

= (16/28 – 7/28) : 1/2

= 9/28 : 1/2

= 9/28 × 2/1

= 18/28

= 9/14