kak tolong ya dibantu pakek caraya

1)b. 25%+1/3×0,5 = 25/100 +( 1/3 × 5/10)
= 25/100+ 5/30 = 25% + 16,6%
= 41,6%
c. 1/3+25%÷0,5 = 1/3 + ( 25/100 ÷ 5/10)
= 1/3+ (25/100×10/5=5/10)
=1/3+5/10 =10/30 +15/30 = 25/30 atau 5/6