Question

Bài 1: Rút gọn phân số.

                           a) 44 phần 77                       b) 72 phần 90

Answer 1

a: 44/77=4/7

b: 72/90=4/5

Answer 2

a,\(\dfrac{44}{77}=\dfrac{44:11}{77:11}=\dfrac{4}{7}\)

b\(\dfrac{72}{90}=\dfrac{72:9}{90:9}=\dfrac{8}{9}\)

Answer 3

\(a,\dfrac{44}{77}=\dfrac{44:11}{77:11}=\dfrac{4}{7}\\ b,\dfrac{72}{90}=\dfrac{72:9}{90:9}=\dfrac{8}{10}=\dfrac{4}{5}\)

Answer 4

Answer 5

a: 44/77=4/7

b: 72/90=4/5

Answer 6

a: 44/77=4/7

b: 72/90=4/5