Question

me pueden ayudar con esto porfa , necesito su ayuda ​

Answer 1

tenés que sumar lo de arriba y lo de abajo no cambia lo mismo con la resta

6

Answer 2

Sumas

4/8+2/8 = 6/8. 1/10+4/10 = 5/10. 4/6+2/6 = 6/6 = 1

2/3+1/3 = 3/3 = 1 3/6+ 1/6 = 4/6. 3/12+6/12 = 9/12

3/16+7/16 = 10/16. 5/21+2/21 = 7/21 3/20+5/20=8/20

Restas

5/6-4/6=1/6. 6/8-1/8=5/8. 4/7-2/7=2/7. 9/11-8/11=1/11

2/3-1/3 = 1/3. 8/5-1/5 = 7/5. 21/15-7/15 = 14/15 41/50-24/50 = 17/50

Resta simplificada

4/8-2/8 = (4-2)/8 = 2/8 7/10-2/10 = (7-2)/10 = 5/10

4/6-2/6 = (4-2)/6 = 2/6 11/15-2/15 = (11-2)/15 = 9/15

14/9-2/9 = (14-2)/9 = 12/9. 11/12-1/12 = (11-1)/12 = 10/12