kak tolong bantu jawab ya,pake cara

A)3/2 + 40/100 * 3/10 : 1/4
= 3/2 + 40/100 * 3/10 * 4/1
= 3/2 + 480/1000
= 1500/1000 + 480/1000
=1980/1000
= 198/100
=1,98

B) 3/2 - 40/100 : 3/10 * 1/4
= 3/2 - 40/100 * 10/3 * 1/4
= 3/2 - 400/1200
= 1800/1200 - 400/1200
=1400/1200
=14/12
=7/6

ini jawabanya dek semoga bermanfaat