Question

[Nguyễn Thị Thanh Lộc]

1. Rút gọn phân số

a)-22/36

b)-51/34

c)147/234

d)161/77

e)11 * 12 + 22 * 24 + 44 * 48 / 33 * 36 + 66 * 72 + 132 * 144

Answer 1

[Le Thi Khanh Huyen]

a) \(-\frac{11}{18}\)

b)\(-\frac{3}{2}\)

c)\(\frac{49}{78}\)

d)\(\frac{23}{11}\)

e) \(\frac{11.12+22.24+44.48}{33.36+66.72+132.144}\)

\(=\frac{11.12+22.24+44.48}{11.3.12.3+22.3.3.24+44.3.348}\)

\(=\frac{11.12+22.24+44.48}{\left(1.12+22.24+44.48\right).9}\)

\(=\frac{1}{9}\)