Question

calcule as operacoes com fracoes

7/13+ 2/5 . 9/10+10/11. 13/10+29/2.
5/3+2/3. 8/15+2/5.

Answer 1

7/13 + 2/5 =
MMC de 13 e 5 = 65
7/13/ 5 + 2/5/13=
35/65 + 26/65 = 61/65

9/10 + 10/11
MMC = 110
9/10/11 + 10/11/10 =
99/110 + 100/110 = 199/110

13/10 + 29/2 =
MMC = 10
13/10/1 + 29/2/5=
13/10 + 145/10= 158/10 = 79/5(simplificado)

5/3 = 2/3 = 7/3

8/15 + 2/5
MMC = 15
8/15/1 + 2/5/3 = 8/15 + 5/15 = 13/15

Answer 2

7/13 + 18/50 + 130/110 + 145/6 + 16/45 + 2/5

7+18+13+145+16+2/5850 = 201/5850=29,10