Tolong Ubah Ke Desimal KK Makasih..​

Jawaban:

A.) 4 2/5:2,2×(1 3/4:50%)

4 2/5:2,2×(7/4÷50/100=700/200=7/2)=

2/5÷22/10×7/2=

20/110×7/2=

140/220=14/22=7/11

B.) 2,8:(20%×1 1/4):0,5=

2,8:(20/100×5/4=100/400):0,5=

28/10:100/400=28/10×400/100=

28/10×4=112/10:5/10=

112/10×5/10=112/10×10/5=

112/10×2=224/10=22 4/10

Maaf ya kalau salah