Question

Calcule:

A) 5/4 - 1/3 + 4/5

B) 4/3 - 1/4 + 2/5

Answer 1

Explicação passo-a-passo:

4,3,5/2

2,3,5/2

1,3,5/3

1,1,5/5

1,1,1/____// mmc(4,3,5)= 2².3.5=60

A)

5/4 - 1/3 + 4/5=(75-20+48)/60

5/4-1/3+4/5=(55+48)/60

5/4-1/3+4/5=103/60

B) 4/3 - 1/4 + 2/5

3,4,5/2

3,2,5/2

3,1,5/3

1,1,5/5

1,1,1/____// mmc(3,4,5)=2².3.5=60

4/3-1/4+2/5=(80-15+24)/60

4/3-1/4+2/5= (65+24)/60

4/3-1/4+2/5= 89/60