Hasil dari 4 2/5-(1 2/3+5/8) adalah​

= 4 2/5 – (1 2/3 + 5/8)

= 4 2/5 – ((1 × 3 + 2)/3 + 5/8)

= 4 2/5 – (5/3 + 5/8)

= 4 2/5 – ((5 × 8/3 × 8) + (5 × 3/8 × 3)))

= 4 2/5 – (40/24 + 15/24)

= 4 2/5 – ((40 + 15)/24)

= 4 2/5 – 55/24

= (4 × 5 + 2)/5 – 55/24

= 22/5 – 55/24

= (22 × 24/5 × 24) – (55 × 5/24 × 5)

= 528/120 – 275/120

= (528 – 275)/120

= 253/120

= 2 13/120