1.3/8+2/5-1/4= 2.90%-0,72+1 1/2=

1) = 15/40 + 16/40 - 10/40 = 21/40
2) = 9/10 - 18/25 + 3/2 = 45/50 - 36/50 + 75/50
                                     = 84/50
                                     = 42/25
                                     = 1 17/25

maaf kalau salah

semoga membantu ;)

Bismillah
jawabannya:

1.3/8+2/5-1/4
=3/40+2/40-1/40
=4/40

2.90%-0,72+1 1/2
=0,90-0,72+1,5
=0,18+1,5
=1,68


~Good luck for all

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