Question

Bài 2: Tính

a. 11/17 + 6/17

b. 7/15 - 4/15 - 1/15

c. 9/51 + 11/51 + 31/51

d. 9/5 - 1/5 - 3/5

Answer 1

a. = 1

b. = 2/15

c. = 1

d. = 1

Answer 2

a,=17/17=1

b,=7-4-1/15=2/15

c,=9+11+31/51=51/51=1

d,9-1-3/5=5/5=1

Answer 3

a) 11/17 + 6/17 = 1

b) 7/15 - 4/15 - 1/15 = 2/15

c) 9/51 + 11/51 + 31/51 = 1

d) 9/5 - 1/5 - 3/5 = 1

# Học tốt # k mình nha mn

Answer 4

\(\frac{11}{17}+\frac{6}{17}=\frac{17}{17}=1\)

\(\frac{7}{15}-\frac{4}{15}-\frac{1}{15}=\frac{2}{15}\)

\(\frac{9}{51}+\frac{11}{51}+\frac{31}{51}=\frac{51}{51}=1\)

\(\frac{9}{5}-\frac{1}{5}-\frac{3}{5}=\frac{5}{5}=1\)

Answer 5

a. 11/17 + 6/17 = 17/17 = 1

b. 7/15 - 4/15 - 1/15 = 3/15 - 1/15 = 2/15

c. 9/51 + 11/51 + 31/51 = 20/51 + 31/51 = 51/51 = 1

d. 9/5 - 1/5 - 3/5 = 8/5 - 3/5 = 5/5 = 1