Question

1. 8 7/5 - 5 5/8 =
2. 1 1/2 × (-7/8) =
3. (-4 1/4) : 2 1/6 =
4. konversikan pecahan ke bilangan desimal. 4 6/25
5. konversikan bilangan desimal ke bilangan pecahan. 4,5

Answer 1

Jawaban:
1.8 7/5 - 5 5/8=47/5 - 45/8
=376/40 - 225/40
=151/40
=3 31/40.
2.1 1/2 × (-7/8)=(-(3/2 × 7/8))
=(-(3 × 7/2 × 8))
=(-(21/16))
=(-(1 5/16))
=(-1 5/16).
3.(-4 1/4) ÷ 2 1/6=(-(17/4 ÷ 13/6))
=(-(17/4 × 6/13))
=(-(17 × 6/4 × 13))
=(-(102/52))
=(-(1 50/52)
=(-(1 25/26)
=(-1 25/26).
4.4 6/25=4,(6 × 4/25 × 4)=4,(24/100)=4,24.
5.4,5=4 5/10=4 1/2.