1. 5/12-3/8= 2. 10/15-7/12= 3. 3 1/2-1 1/4= 4. A:1 3/5 B:5% C:3,5 A:B×C= 5. 30%×25%= 6. 25%:8/20= 7. 5 3/7+4/5= Tolong dijawab ya

1) 5/12-3/8= 10/24-9/24= 1/24
2) 10/15-7/12=40/60-35/60=5/60= 1/12
3) 3 1/2-1 1/4= 7/2-5/4= 14/4-5/4= 9/4= 2 1/4
4) -
5) 30%×25%= 30/100×25/100=3/40
6) 25%÷8/20=25/100÷8/20=25/100×20/8 =5/8
7) 5 3/7+ 4/5= 38/7+4/5= 190/35+28/35 = 218/35=6 8/35

1. \frac{5}{12} - \frac{3}{8} = \frac{10}{24} - \frac{9}{24} = \frac{1}{24} \frac{10}{15} - \frac{7}{12} 
2.\frac{10}{15} - \frac{7}{12} = \frac{40}{60} - \frac{35}{60} = \frac{5}{60} = \frac{1}{12} 
3.3 \frac{1}{2} - 1 \frac{1}{4} = \frac{7}{2} - \frac{5}{4} = \frac{14}{4} - \frac{5}{4} = \frac{9}{4} = 2 \frac{1}{4} 
4. A : 1 \frac{3}{5} B : 5% C = 3,5
A : 1, 6 / \frac{8}{5} X 100% = 160% / 1,6 X 100 = 160% 
B : \frac{5}{100} = \frac{1}{20} / 0.05
C : 3 \frac{1}{2} = \frac{7}{2} / 3,5 X 100 = 350% 
5[30% X 25% = 0.075 / 7,5% / \frac{30}{100} X \frac{25}{100} = \frac{30}{400} = \frac{15}{200}
6. 25% : \frac{8}{20} = \frac{25}{100} : \frac{8}{20} = \frac{25}{100} X \frac{20}{8} = \frac{5}{8} / 0,625 / 62,5%
7.5 \frac{3}{7} + \frac{4}{5} = \frac{38}{7} + \frac{4}{5} = \frac{190}{35} + \frac{28}{35} = \frac{218}{35} = 6 \frac{8}{35}